Lesson 4.2: Equivalent Fractions and Simplest Form
Applied concepts and practical problem solving for Equivalent Fractions and Simplest Form.
⏱️ Reading Time: 20 mins
• ❓ 50 Interactive Practice Questions
🌟
Real-Life Story: Fractions
Architectural Drafting: Scaling blueprint measurements using equivalent ratios.
💡 Core Mathematical Concepts: Equivalent Fractions and Simplest Form
Focus areas: Simplifying by dividing numerator and denominator by common factors..
| Concept / Term | Mathematical Meaning | Real-Life Application |
|---|---|---|
| Equivalent Fraction | Fractions representing the exact same quantity | 2/3 = 4/6 = 6/9 |
| Simplest Form | Numerator and denominator have no common factor except 1 | 8/12 simplified by ÷4 is 2/3 |
| Common Denominator | Finding a shared multiple to compare fractions | Comparing 1/2 and 3/5 using /10 |
📝 Step-by-Step Worked Examples
Worked Example 1: Simplify 15/20
Divide numerator and denominator by 5 -> 3/4.
Worked Example 2: Find equivalent fraction
3/7 with denominator 28 -> multiply top and bottom by 4 -> 12/28.
⚠️ Common Misconceptions to Avoid
Common Misconception: Dividing only the top number
Correction: You must divide both numerator and denominator by the exact same factor.
Common Misconception: Stopping before simplest form
Correction: Simplifying 12/24 to 6/12 is incomplete; divide by 6 again to reach 1/2.
🎯
Self-Check Challenge
A landscape gardener plants lavender on 18 out of 24 flower beds. What fraction of the flower beds have lavender in simplest form?
Answer & Explanation:
18/24 simplified by dividing by 6 = 3/4.
🎯 Key Learning Takeaways
Extend understanding of Equivalent Fractions and Simplest Form.
Solve multi-step real-world problems systematically.
Verify solutions through mathematical reasoning.
📄 Printable Worksheets (5 Available)
Download ready-to-print PDFs for offline student practice with separate parent/teacher answer keys.
G5-M-CH04-WS05
A4 • 15 Qs
Fractions: Worksheet 5
Practice Assessment 5 • Central Botanical Gardens Context
G5-M-CH04-WS04
A4 • 15 Qs
Fractions: Worksheet 4
Practice Assessment 4 • Eco-Friendly Solar Park Context
G5-M-CH04-WS03
A4 • 15 Qs
Fractions: Worksheet 3
Practice Assessment 3 • Harbor Marine Terminal Context
G5-M-CH04-WS02
A4 • 15 Qs
Fractions: Worksheet 2
Practice Assessment 2 • Science & Discovery Museum Context
G5-M-CH04-WS01
A4 • 15 Qs
Fractions: Worksheet 1
Practice Assessment 1 • City Regional Airport Context
✍️ Lesson Practice Questions (50 Questions)
Solve these real-world challenges online, test your understanding, and reveal instant step-by-step explanations.
1
Short Answer
Hard
2 Marks
Find a fraction that lies strictly between 1/3 and 1/2.
💡 Click to View Correct Answer & Explanation ▼
Correct Answer:
5/12
Step-by-Step Explanation:
Convert to common denominator 12: 1/3 = 4/12 and 1/2 = 6/12. The fraction 5/12 lies strictly between 4/12 and 6/12.
2
Short Answer
Hard
2 Marks
A water jug contains 2 1/4 litres of juice. After guests drink 1 3/4 litres, how many litres of juice remain?
💡 Click to View Correct Answer & Explanation ▼
Correct Answer:
1/2 litre
Step-by-Step Explanation:
Convert to fourths: 9/4 - 7/4 = 2/4 = 1/2 litre.
3
Short Answer
Hard
2 Marks
How do you compare two fractions with different denominators, such as 3/4 and 5/6? Explain the step-by-step method.
💡 Click to View Correct Answer & Explanation ▼
Correct Answer:
Find the least common denominator (12). Convert 3/4 = 9/12 and 5/6 = 10/12. Since 10/12 > 9/12, 5/6 is greater than 3/4.
Step-by-Step Explanation:
Convert both fractions to equivalent fractions with a common denominator, then compare numerators.
4
Short Answer
Hard
2 Marks
Explain why 2/3 and 6/9 represent the exact same amount on a number line.
💡 Click to View Correct Answer & Explanation ▼
Correct Answer:
Dividing each third of the whole into 3 equal sub-parts gives ninths. 2 thirds contain exactly 2 × 3 = 6 ninths, landing at the exact same physical coordinate.
Step-by-Step Explanation:
Multiplying top and bottom by 3 scales the partition without changing the actual value or position.
5
Short Answer
Medium
1 Mark
Sophia claims: '1/3 is larger than 1/2 because 3 is larger than 2.' Explain the flaw in Sophia's reasoning.
💡 Click to View Correct Answer & Explanation ▼
Correct Answer:
1/2 is larger than 1/3
Step-by-Step Explanation:
In unit fractions, a larger denominator means the whole is divided into more, smaller pieces. 1/2 is half, which is greater than 1/3.
6
Short Answer
Medium
1 Mark
Lucas says: '2/5 + 1/5 = 3/10 because you add the top numbers and add the bottom numbers.' Identify Lucas's mistake and state the correct sum.
💡 Click to View Correct Answer & Explanation ▼
Correct Answer:
3/5
Step-by-Step Explanation:
Lucas added the denominators. When adding like fractions, the denominator stays the same: 2/5 + 1/5 = 3/5.
7
Fill in the Blanks
Medium
1 Mark
Fill in the missing denominator: 4/7 = 16 / [ ? ].
💡 Click to View Correct Answer & Explanation ▼
Correct Answer:
28
Step-by-Step Explanation:
Numerator is multiplied by 4 (4 × 4 = 16), so 7 × 4 = 28.
8
Fill in the Blanks
Medium
1 Mark
Find the missing numerator: 3/4 = [ ? ] / 20.
💡 Click to View Correct Answer & Explanation ▼
Correct Answer:
15
Step-by-Step Explanation:
Multiply denominator by 5 (4 × 5 = 20), so multiply numerator by 5: 3 × 5 = 15.
9
Short Answer
Medium
1 Mark
In a class reading contest, Maya read 2/3 of her novel while Ethan read 3/5 of his identical novel. Who read a greater fraction of the novel?
💡 Click to View Correct Answer & Explanation ▼
Correct Answer:
Maya
Step-by-Step Explanation:
Find common denominator 15: Maya = 10/15, Ethan = 9/15. Since 10/15 > 9/15, Maya read more.
10
Short Answer
Medium
1 Mark
A painter uses 7/10 of a bucket of green paint for a garden fence. What fraction of paint remains in the bucket?
💡 Click to View Correct Answer & Explanation ▼
Correct Answer:
3/10
Step-by-Step Explanation:
1 whole bucket - 7/10 = 10/10 - 7/10 = 3/10 bucket remaining.
11
Short Answer
Medium
1 Mark
At the Central Botanical Gardens bakery, chef prepared 3/8 of a batch of blueberry muffins in the morning and 2/8 in the afternoon. What fraction of the batch was baked in total?
💡 Click to View Correct Answer & Explanation ▼
Correct Answer:
5/8
Step-by-Step Explanation:
Add fractions with like denominators: 3/8 + 2/8 = 5/8 of the batch.
12
Multiple Choice
Easy
1 Mark
Convert the improper fraction 17/5 into a mixed number.
A
3 2/5
B
3 1/5
C
2 7/5
D
4 2/5
💡 Click to View Correct Answer & Explanation ▼
Correct Answer:
3 2/5
Step-by-Step Explanation:
17 ÷ 5 = 3 with remainder 2, so 17/5 = 3 2/5.
13
Multiple Choice
Easy
1 Mark
Which of the following fractions is strictly greater than 1/2?
A
5/8
B
3/8
C
4/10
D
2/5
💡 Click to View Correct Answer & Explanation ▼
Correct Answer:
5/8
Step-by-Step Explanation:
Convert to eighths: 1/2 = 4/8. Since 5/8 > 4/8, 5/8 is greater than 1/2.
14
Multiple Choice
Easy
1 Mark
What is the simplest form of the fraction 18/24?
A
3/4
B
6/8
C
9/12
D
2/3
💡 Click to View Correct Answer & Explanation ▼
Correct Answer:
3/4
Step-by-Step Explanation:
Divide both numerator and denominator by their greatest common factor (6): 18÷6 / 24÷6 = 3/4.
15
Multiple Choice
Easy
1 Mark
Which fraction is equivalent to 6/18?
A
1/3
B
1/4
C
2/5
D
3/8
💡 Click to View Correct Answer & Explanation ▼
Correct Answer:
1/3
Step-by-Step Explanation:
Divide numerator and denominator by 6: 6/18 = 1/3.
16
Short Answer
Hard
2 Marks
Find a fraction that lies strictly between 1/3 and 1/2.
💡 Click to View Correct Answer & Explanation ▼
Correct Answer:
5/12
Step-by-Step Explanation:
Convert to common denominator 12: 1/3 = 4/12 and 1/2 = 6/12. The fraction 5/12 lies strictly between 4/12 and 6/12.
17
Short Answer
Hard
2 Marks
A water jug contains 2 1/4 litres of juice. After guests drink 1 3/4 litres, how many litres of juice remain?
💡 Click to View Correct Answer & Explanation ▼
Correct Answer:
1/2 litre
Step-by-Step Explanation:
Convert to fourths: 9/4 - 7/4 = 2/4 = 1/2 litre.
18
Short Answer
Hard
2 Marks
How do you compare two fractions with different denominators, such as 3/4 and 5/6? Explain the step-by-step method.
💡 Click to View Correct Answer & Explanation ▼
Correct Answer:
Find the least common denominator (12). Convert 3/4 = 9/12 and 5/6 = 10/12. Since 10/12 > 9/12, 5/6 is greater than 3/4.
Step-by-Step Explanation:
Convert both fractions to equivalent fractions with a common denominator, then compare numerators.
19
Short Answer
Hard
2 Marks
Explain why 2/3 and 6/9 represent the exact same amount on a number line.
💡 Click to View Correct Answer & Explanation ▼
Correct Answer:
Dividing each third of the whole into 3 equal sub-parts gives ninths. 2 thirds contain exactly 2 × 3 = 6 ninths, landing at the exact same physical coordinate.
Step-by-Step Explanation:
Multiplying top and bottom by 3 scales the partition without changing the actual value or position.
20
Short Answer
Medium
1 Mark
Sophia claims: '1/3 is larger than 1/2 because 3 is larger than 2.' Explain the flaw in Sophia's reasoning.
💡 Click to View Correct Answer & Explanation ▼
Correct Answer:
1/2 is larger than 1/3
Step-by-Step Explanation:
In unit fractions, a larger denominator means the whole is divided into more, smaller pieces. 1/2 is half, which is greater than 1/3.
21
Short Answer
Medium
1 Mark
Lucas says: '2/5 + 1/5 = 3/10 because you add the top numbers and add the bottom numbers.' Identify Lucas's mistake and state the correct sum.
💡 Click to View Correct Answer & Explanation ▼
Correct Answer:
3/5
Step-by-Step Explanation:
Lucas added the denominators. When adding like fractions, the denominator stays the same: 2/5 + 1/5 = 3/5.
22
Fill in the Blanks
Medium
1 Mark
Fill in the missing denominator: 4/7 = 16 / [ ? ].
💡 Click to View Correct Answer & Explanation ▼
Correct Answer:
28
Step-by-Step Explanation:
Numerator is multiplied by 4 (4 × 4 = 16), so 7 × 4 = 28.
23
Fill in the Blanks
Medium
1 Mark
Find the missing numerator: 3/4 = [ ? ] / 20.
💡 Click to View Correct Answer & Explanation ▼
Correct Answer:
15
Step-by-Step Explanation:
Multiply denominator by 5 (4 × 5 = 20), so multiply numerator by 5: 3 × 5 = 15.
24
Short Answer
Medium
1 Mark
In a class reading contest, Maya read 2/3 of her novel while Ethan read 3/5 of his identical novel. Who read a greater fraction of the novel?
💡 Click to View Correct Answer & Explanation ▼
Correct Answer:
Maya
Step-by-Step Explanation:
Find common denominator 15: Maya = 10/15, Ethan = 9/15. Since 10/15 > 9/15, Maya read more.
25
Short Answer
Medium
1 Mark
A painter uses 7/10 of a bucket of green paint for a garden fence. What fraction of paint remains in the bucket?
💡 Click to View Correct Answer & Explanation ▼
Correct Answer:
3/10
Step-by-Step Explanation:
1 whole bucket - 7/10 = 10/10 - 7/10 = 3/10 bucket remaining.
26
Short Answer
Medium
1 Mark
At the Eco-Friendly Solar Park bakery, chef prepared 3/8 of a batch of blueberry muffins in the morning and 2/8 in the afternoon. What fraction of the batch was baked in total?
💡 Click to View Correct Answer & Explanation ▼
Correct Answer:
5/8
Step-by-Step Explanation:
Add fractions with like denominators: 3/8 + 2/8 = 5/8 of the batch.
27
Multiple Choice
Easy
1 Mark
Convert the improper fraction 17/5 into a mixed number.
A
3 2/5
B
3 1/5
C
2 7/5
D
4 2/5
💡 Click to View Correct Answer & Explanation ▼
Correct Answer:
3 2/5
Step-by-Step Explanation:
17 ÷ 5 = 3 with remainder 2, so 17/5 = 3 2/5.
28
Multiple Choice
Easy
1 Mark
Which of the following fractions is strictly greater than 1/2?
A
5/8
B
3/8
C
4/10
D
2/5
💡 Click to View Correct Answer & Explanation ▼
Correct Answer:
5/8
Step-by-Step Explanation:
Convert to eighths: 1/2 = 4/8. Since 5/8 > 4/8, 5/8 is greater than 1/2.
29
Multiple Choice
Easy
1 Mark
What is the simplest form of the fraction 18/24?
A
3/4
B
6/8
C
9/12
D
2/3
💡 Click to View Correct Answer & Explanation ▼
Correct Answer:
3/4
Step-by-Step Explanation:
Divide both numerator and denominator by their greatest common factor (6): 18÷6 / 24÷6 = 3/4.
30
Multiple Choice
Easy
1 Mark
Which fraction is equivalent to 5/15?
A
1/3
B
1/4
C
2/5
D
3/8
💡 Click to View Correct Answer & Explanation ▼
Correct Answer:
1/3
Step-by-Step Explanation:
Divide numerator and denominator by 5: 5/15 = 1/3.
31
Short Answer
Hard
2 Marks
Find a fraction that lies strictly between 1/3 and 1/2.
💡 Click to View Correct Answer & Explanation ▼
Correct Answer:
5/12
Step-by-Step Explanation:
Convert to common denominator 12: 1/3 = 4/12 and 1/2 = 6/12. The fraction 5/12 lies strictly between 4/12 and 6/12.
32
Short Answer
Hard
2 Marks
A water jug contains 2 1/4 litres of juice. After guests drink 1 3/4 litres, how many litres of juice remain?
💡 Click to View Correct Answer & Explanation ▼
Correct Answer:
1/2 litre
Step-by-Step Explanation:
Convert to fourths: 9/4 - 7/4 = 2/4 = 1/2 litre.
33
Short Answer
Hard
2 Marks
How do you compare two fractions with different denominators, such as 3/4 and 5/6? Explain the step-by-step method.
💡 Click to View Correct Answer & Explanation ▼
Correct Answer:
Find the least common denominator (12). Convert 3/4 = 9/12 and 5/6 = 10/12. Since 10/12 > 9/12, 5/6 is greater than 3/4.
Step-by-Step Explanation:
Convert both fractions to equivalent fractions with a common denominator, then compare numerators.
34
Short Answer
Hard
2 Marks
Explain why 2/3 and 6/9 represent the exact same amount on a number line.
💡 Click to View Correct Answer & Explanation ▼
Correct Answer:
Dividing each third of the whole into 3 equal sub-parts gives ninths. 2 thirds contain exactly 2 × 3 = 6 ninths, landing at the exact same physical coordinate.
Step-by-Step Explanation:
Multiplying top and bottom by 3 scales the partition without changing the actual value or position.
35
Short Answer
Medium
1 Mark
Sophia claims: '1/3 is larger than 1/2 because 3 is larger than 2.' Explain the flaw in Sophia's reasoning.
💡 Click to View Correct Answer & Explanation ▼
Correct Answer:
1/2 is larger than 1/3
Step-by-Step Explanation:
In unit fractions, a larger denominator means the whole is divided into more, smaller pieces. 1/2 is half, which is greater than 1/3.
36
Short Answer
Medium
1 Mark
Lucas says: '2/5 + 1/5 = 3/10 because you add the top numbers and add the bottom numbers.' Identify Lucas's mistake and state the correct sum.
💡 Click to View Correct Answer & Explanation ▼
Correct Answer:
3/5
Step-by-Step Explanation:
Lucas added the denominators. When adding like fractions, the denominator stays the same: 2/5 + 1/5 = 3/5.
37
Fill in the Blanks
Medium
1 Mark
Fill in the missing denominator: 4/7 = 16 / [ ? ].
💡 Click to View Correct Answer & Explanation ▼
Correct Answer:
28
Step-by-Step Explanation:
Numerator is multiplied by 4 (4 × 4 = 16), so 7 × 4 = 28.
38
Fill in the Blanks
Medium
1 Mark
Find the missing numerator: 3/4 = [ ? ] / 20.
💡 Click to View Correct Answer & Explanation ▼
Correct Answer:
15
Step-by-Step Explanation:
Multiply denominator by 5 (4 × 5 = 20), so multiply numerator by 5: 3 × 5 = 15.
39
Short Answer
Medium
1 Mark
In a class reading contest, Maya read 2/3 of her novel while Ethan read 3/5 of his identical novel. Who read a greater fraction of the novel?
💡 Click to View Correct Answer & Explanation ▼
Correct Answer:
Maya
Step-by-Step Explanation:
Find common denominator 15: Maya = 10/15, Ethan = 9/15. Since 10/15 > 9/15, Maya read more.
40
Short Answer
Medium
1 Mark
A painter uses 7/10 of a bucket of green paint for a garden fence. What fraction of paint remains in the bucket?
💡 Click to View Correct Answer & Explanation ▼
Correct Answer:
3/10
Step-by-Step Explanation:
1 whole bucket - 7/10 = 10/10 - 7/10 = 3/10 bucket remaining.
41
Short Answer
Medium
1 Mark
At the Harbor Marine Terminal bakery, chef prepared 3/8 of a batch of blueberry muffins in the morning and 2/8 in the afternoon. What fraction of the batch was baked in total?
💡 Click to View Correct Answer & Explanation ▼
Correct Answer:
5/8
Step-by-Step Explanation:
Add fractions with like denominators: 3/8 + 2/8 = 5/8 of the batch.
42
Multiple Choice
Easy
1 Mark
Convert the improper fraction 17/5 into a mixed number.
A
3 2/5
B
3 1/5
C
2 7/5
D
4 2/5
💡 Click to View Correct Answer & Explanation ▼
Correct Answer:
3 2/5
Step-by-Step Explanation:
17 ÷ 5 = 3 with remainder 2, so 17/5 = 3 2/5.
43
Multiple Choice
Easy
1 Mark
Which of the following fractions is strictly greater than 1/2?
A
5/8
B
3/8
C
4/10
D
2/5
💡 Click to View Correct Answer & Explanation ▼
Correct Answer:
5/8
Step-by-Step Explanation:
Convert to eighths: 1/2 = 4/8. Since 5/8 > 4/8, 5/8 is greater than 1/2.
44
Multiple Choice
Easy
1 Mark
What is the simplest form of the fraction 18/24?
A
3/4
B
6/8
C
9/12
D
2/3
💡 Click to View Correct Answer & Explanation ▼
Correct Answer:
3/4
Step-by-Step Explanation:
Divide both numerator and denominator by their greatest common factor (6): 18÷6 / 24÷6 = 3/4.
45
Multiple Choice
Easy
1 Mark
Which fraction is equivalent to 4/12?
A
1/3
B
1/4
C
2/5
D
3/8
💡 Click to View Correct Answer & Explanation ▼
Correct Answer:
1/3
Step-by-Step Explanation:
Divide numerator and denominator by 4: 4/12 = 1/3.
46
Short Answer
Hard
2 Marks
Find a fraction that lies strictly between 1/3 and 1/2.
💡 Click to View Correct Answer & Explanation ▼
Correct Answer:
5/12
Step-by-Step Explanation:
Convert to common denominator 12: 1/3 = 4/12 and 1/2 = 6/12. The fraction 5/12 lies strictly between 4/12 and 6/12.
47
Short Answer
Hard
2 Marks
A water jug contains 2 1/4 litres of juice. After guests drink 1 3/4 litres, how many litres of juice remain?
💡 Click to View Correct Answer & Explanation ▼
Correct Answer:
1/2 litre
Step-by-Step Explanation:
Convert to fourths: 9/4 - 7/4 = 2/4 = 1/2 litre.
48
Short Answer
Hard
2 Marks
How do you compare two fractions with different denominators, such as 3/4 and 5/6? Explain the step-by-step method.
💡 Click to View Correct Answer & Explanation ▼
Correct Answer:
Find the least common denominator (12). Convert 3/4 = 9/12 and 5/6 = 10/12. Since 10/12 > 9/12, 5/6 is greater than 3/4.
Step-by-Step Explanation:
Convert both fractions to equivalent fractions with a common denominator, then compare numerators.
49
Short Answer
Hard
2 Marks
Explain why 2/3 and 6/9 represent the exact same amount on a number line.
💡 Click to View Correct Answer & Explanation ▼
Correct Answer:
Dividing each third of the whole into 3 equal sub-parts gives ninths. 2 thirds contain exactly 2 × 3 = 6 ninths, landing at the exact same physical coordinate.
Step-by-Step Explanation:
Multiplying top and bottom by 3 scales the partition without changing the actual value or position.
50
Short Answer
Medium
1 Mark
Sophia claims: '1/3 is larger than 1/2 because 3 is larger than 2.' Explain the flaw in Sophia's reasoning.
💡 Click to View Correct Answer & Explanation ▼
Correct Answer:
1/2 is larger than 1/3
Step-by-Step Explanation:
In unit fractions, a larger denominator means the whole is divided into more, smaller pieces. 1/2 is half, which is greater than 1/3.