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Primary 4 Mathematics Fractions Quiz

Free P4 Maths Fractions quiz, HY3 AI version, with questions, answers, and syllabus-aligned practice for Singapore students.

These static practice materials are generated from the site's syllabus and paper-generation workflow, with source and model context shown so students and parents can evaluate the material before use.

Primary 4 Mathematics AI Generated Generated by Tencent HY3 Free Updated 2026-08-17

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Questions

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.

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: __________

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: __________

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.

Diagram for Q19 (P4 Maths)

Generated 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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Answers

Primary 4 Mathematics Quiz - Fractions (Answer Key)

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

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

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

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