Primary 4 Mathematics Fractions Quiz

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Primary 4 Mathematics Quiz - Fractions

Name: ___________________________
Class: ________
Date: ____________
Score: _______ / 40

Duration: 50 minutes
Total Marks: 40
Instructions:

• This quiz has 20 questions on Fractions (mixed numbers, improper fractions, equivalent fractions, addition/subtraction with unlike denominators, and fractions of a set/quantity).
• Show your working clearly in the space provided.
• Section A: 10 short questions (1 mark each). Section B: 6 questions (2 marks each). Section C: 4 questions (3 marks each).
• This is syllabus-first practice content generated from LLM-inferred templates. It is not derived from past-year exam papers.

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Section A (Questions 1–10, 1 mark each)

1. Write $2\frac{3}{4}$ as an improper fraction.
Answer: __________

2. Write $\frac{11}{4}$ as a mixed number.
Answer: __________

3. Express $\frac{6}{8}$ in its simplest form.
Answer: __________

4. Which of the following is equivalent to $\frac{1}{2}$? (Write the fraction)
$\frac{2}{3}$, $\frac{3}{6}$, $\frac{4}{10}$
Answer: __________

5. Find $\frac{1}{3}$ of 12.
Answer: __________

6. A set has 20 stickers. What is $\frac{1}{4}$ of the set?
Answer: __________

7. Add: $\frac{1}{2} + \frac{1}{4} =$
Answer: __________

8. Subtract: $\frac{3}{4} - \frac{1}{2} =$
Answer: __________

9. Convert $3\frac{1}{5}$ to an improper fraction.
Answer: __________

10. What is $\frac{2}{5}$ of 15?
Answer: __________

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Section B (Questions 11–16, 2 marks each)

11. Add: $\frac{1}{3} + \frac{1}{6}$. Show your working.
Working: _______________________
Answer: __________

12. Subtract: $\frac{5}{6} - \frac{1}{4}$. Show your working.
Working: _______________________
Answer: __________

13. At a hawker stall, Uncle Lim sold $4\frac{1}{2}$ plates of laksa in the morning and $3\frac{3}{4}$ plates at lunch. How many plates did he sell altogether?
Working: _______________________
Answer: __________

14. For Chinese New Year, 8 families each contributed $\frac{7}{4}$ kg of pineapple tarts. How much tarts were there altogether? Give your answer as a mixed number if needed.
Working: _______________________
Answer: __________

15. There are 24 pupils in a class. $\frac{3}{8}$ of them are boys. How many boys are there?
Working: _______________________
Answer: __________

16. A rope is $5\frac{1}{2}$ m long. Ahmad cuts off $2\frac{1}{4}$ m. What length remains?
Working: _______________________
Answer: __________

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Section C (Questions 17–20, 3 marks each)

17. Auntie May sold $4\frac{1}{2}$ plates of laksa in the morning and $3\frac{3}{4}$ plates at lunch. If each plate uses $\frac{2}{3}$ of a bowl of noodles, how many bowls of noodles did she use in total? Show all steps.
Working: _______________________
Answer: __________

18. A class of 30 students ate pizza. $\frac{2}{5}$ ate cheese pizza and $\frac{1}{3}$ ate pepperoni pizza. The rest ate veggie pizza.
(a) What fraction ate veggie pizza?
(b) How many students ate veggie pizza?
Working: _______________________
Answers: (a) __________ (b) __________

19. The figure below shows a rectangle divided into equal parts. Some parts are shaded.

Image pending generation: diagram for Q19.

What fraction of the whole rectangle is shaded? Simplify your answer. Show working.
Working: _______________________
Answer: __________

20. Siti had $2\frac{1}{2}$ chocolate bars. She gave $\frac{3}{4}$ of a bar to her brother and ate $1\frac{1}{4}$ bars herself. How much chocolate does she have left? Show all steps.
Working: _______________________
Answer: __________

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Primary 4 Mathematics Quiz - Fractions (Answer Key)

Total Marks: 40
Syllabus-first content from LLM-inferred templates. Not past-year exam derived.

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Section A (1 mark each)

1. $2\frac{3}{4} = \frac{2 \times 4 + 3}{4} = \frac{11}{4}$
Answer: $\frac{11}{4}$
Teaching: Mixed number → improper: multiply whole by denominator, add numerator.

2. $\frac{11}{4} = 11 \div 4 = 2$ remainder $3$ → $2\frac{3}{4}$
Answer: $2\frac{3}{4}$
Teaching: Improper → mixed: divide numerator by denominator.

3. $\frac{6}{8} = \frac{6 \div 2}{8 \div 2} = \frac{3}{4}$
Answer: $\frac{3}{4}$
Teaching: Simplify by dividing numerator and denominator by GCD (2).

4. $\frac{3}{6} = \frac{1}{2}$ (since $3 \div 3 = 1$, $6 \div 3 = 2$)
Answer: $\frac{3}{6}$
Teaching: Equivalent fraction must have same value.

5. $\frac{1}{3} \times 12 = 12 \div 3 = 4$
Answer: 4
Teaching: "of" means multiply; divide total by denominator.

6. $\frac{1}{4} \times 20 = 20 \div 4 = 5$
Answer: 5 stickers
Teaching: Fraction of a set: divide set by denominator.

7. $\frac{1}{2} + \frac{1}{4} = \frac{2}{4} + \frac{1}{4} = \frac{3}{4}$
Answer: $\frac{3}{4}$
Teaching: Common denominator 4.

8. $\frac{3}{4} - \frac{1}{2} = \frac{3}{4} - \frac{2}{4} = \frac{1}{4}$
Answer: $\frac{1}{4}$
Teaching: Convert to same denominator first.

9. $3\frac{1}{5} = \frac{3 \times 5 + 1}{5} = \frac{16}{5}$
Answer: $\frac{16}{5}$

10. $\frac{2}{5} \times 15 = 15 \div 5 \times 2 = 3 \times 2 = 6$
Answer: 6

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Section B (2 marks each)

11. $\frac{1}{3} + \frac{1}{6} = \frac{2}{6} + \frac{1}{6} = \frac{3}{6} = \frac{1}{2}$
Marking: 1 mark conversion, 1 mark final answer.
Answer: $\frac{1}{2}$

12. $\frac{5}{6} - \frac{1}{4}$: LCM of 6,4 = 12 → $\frac{10}{12} - \frac{3}{12} = \frac{7}{12}$
Marking: 1 mark common denom, 1 mark answer.
Answer: $\frac{7}{12}$

13. $4\frac{1}{2} + 3\frac{3}{4} = \frac{9}{2} + \frac{15}{4} = \frac{18}{4} + \frac{15}{4} = \frac{33}{4} = 8\frac{1}{4}$
Marking: 1 mark conversion/add, 1 mark answer.
Answer: $8\frac{1}{4}$ plates

14. $8 \times \frac{7}{4} = \frac{56}{4} = 14$ kg (already whole)
Marking: 1 mark multiply, 1 mark answer.
Answer: 14 kg

15. $\frac{3}{8} \times 24 = 24 \div 8 \times 3 = 3 \times 3 = 9$
Marking: 1 mark method, 1 mark answer.
Answer: 9 boys

16. $5\frac{1}{2} - 2\frac{1}{4} = \frac{11}{2} - \frac{9}{4} = \frac{22}{4} - \frac{9}{4} = \frac{13}{4} = 3\frac{1}{4}$ m
Marking: 1 mark convert/subtract, 1 mark answer.
Answer: $3\frac{1}{4}$ m

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Section C (3 marks each)

17. Total plates: $4\frac{1}{2} + 3\frac{3}{4} = 8\frac{1}{4} = \frac{33}{4}$
Noodles: $\frac{33}{4} \times \frac{2}{3} = \frac{66}{12} = \frac{11}{2} = 5\frac{1}{2}$ bowls
Marking: 1m total plates, 1m multiply, 1m final.
Answer: $5\frac{1}{2}$ bowls

18. (a) $1 - \frac{2}{5} - \frac{1}{3} = \frac{15}{15} - \frac{6}{15} - \frac{5}{15} = \frac{4}{15}$
(b) $\frac{4}{15} \times 30 = 8$
Marking: 1m fraction, 1m multiply, 1m answers.
Answers: (a) $\frac{4}{15}$ (b) 8 students

19. Shaded = 3 + 2 = 5 strips of 8 → $\frac{5}{8}$ (already simplest)
Image must show 8 equal strips, 5 shaded.
Marking: 1m count, 1m fraction, 1m simplify/state.
Answer: $\frac{5}{8}$

20. Start $2\frac{1}{2} = \frac{5}{2}$. Given $\frac{3}{4}$, ate $1\frac{1}{4} = \frac{5}{4}$. Total out: $\frac{3}{4} + \frac{5}{4} = \frac{8}{4} = 2$. Left: $\frac{5}{2} - 2 = \frac{1}{2}$ bar.
Marking: 1m convert, 1m subtract total, 1m answer.
Answer: $\frac{1}{2}$ bar