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Primary 4 Mathematics Fractions Quiz

Free P4 Maths Fractions quiz, Ox 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 Ox Alpha Updated 2026-08-27

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Questions

Primary 4 Mathematics Quiz - Fractions

Name: ______________________ Class: ____________ Date: ____________

Score: __________ / 50

Duration: 60 minutes | Total Marks: 50

Instructions:

Answer all 20 questions.
Show your working clearly under each question for Sections B, C and D.
Give all fraction answers in their simplest form, with correct units where needed.
The marks for each question are shown in brackets [ ].
Note: These are original practice questions written to match the Primary 4 Mathematics syllabus. They are not taken from any past-year examination paper.

Section A: Direct Answers (Questions 1 to 5, 5 marks)

Write your answers in the blanks. Working is not required.

Question 1.

Write $2\frac{3}{5}$ as an improper fraction.

Answer: ______________ [1]

Question 2.

Write $\frac{17}{6}$ as a mixed number.

Answer: ______________ [1]

Question 3.

Fill in the missing number: $\frac{2}{3} = \frac{\square}{18}$

Answer: ______________ [1]

Question 4.

Circle the smaller fraction: $\frac{2}{5}$ or $\frac{2}{7}$

Answer: ______________ [1]

Question 5.

The fraction bar is divided into equal parts. Write, in its simplest form, the fraction of the bar that is shaded.

Image pending generation: diagram for Q5.

Answer: ______________ [1]

Section B: Short Working (Questions 6 to 10, 10 marks)

Show your working. Simplify all answers.

Question 6.

(a) Express $\frac{23}{4}$ as a mixed number.

(b) Express $3\frac{5}{8}$ as an improper fraction.

Answers: (a) ____________ (b) ____________ [2]

Question 7.

Arrange the following fractions from the smallest to the largest:

$\frac{1}{2}, \qquad \frac{3}{8}, \qquad \frac{2}{3}$

Answer: ______________ [2]

Question 8.

Find the value of $\frac{2}{5} + \frac{3}{10}$ . Give your answer in its simplest form.

Answer: ______________ [2]

Question 9.

The number line goes from 0 to 3 and is divided into equal intervals. Point P stands for a mixed number. Write the mixed number that P stands for.

Image pending generation: diagram for Q9.

Answer: ______________ [2]

Question 10.

Find the value of $\frac{5}{6} - \frac{1}{3}$ . Give your answer in its simplest form.

Answer: ______________ [2]

Section C: Word Problems (Questions 11 to 15, 15 marks)

Show your working clearly. Write your answers with units.

Question 11.

Mrs Tan bought 2 kg of sugar. She used $\frac{3}{4}$ kg on Monday and $\frac{5}{8}$ kg on Tuesday. How much sugar had she left?

Answer: ______________ [3]

Question 12.

A rope 7 m long is cut into equal pieces, each $\frac{1}{2}$ m long. How many pieces are there?

Answer: ______________ [3]

Question 13.

A tank contained $3\frac{1}{2}$ litres of water. After some water was used, $1\frac{1}{4}$ litres remained. How much water was used?

Answer: ______________ [3]

Question 14.

In a class of 32 pupils, $\frac{3}{8}$ of them are boys. How many girls are there?

Answer: ______________ [3]

Question 15.

A pizza is cut into 12 equal slices. Ravi ate $\frac{1}{3}$ of the pizza and Mei ate $\frac{1}{4}$ of the pizza. What fraction of the pizza was left?

Answer: ______________ [3]

Section D: Problem Solving (Questions 16 to 20, 20 marks)

Show your working clearly. Write your answers with units.

Question 16.

A ribbon is $4\frac{5}{6}$ m long. A piece measuring $1\frac{2}{3}$ m is cut off to wrap a gift. The remaining ribbon is cut into 4 equal pieces. What is the length of each piece?

Answer: ______________ [4]

Question 17.

A jug contains $2\frac{2}{5}$ litres of juice. The juice is poured equally into glasses, each holding $\frac{1}{5}$ litre. How many glasses can be completely filled?

Answer: ______________ [4]

Question 18.

Two ropes have a total length of 6 m. One rope is $2\frac{3}{4}$ m longer than the other. Find the length of the shorter rope.

Answer: ______________ [4]

Question 19.

Siti spent $\frac{2}{5}$ of her money on a book. She then spent $\frac{1}{3}$ of the remainder on food. She had $12 left. How much money did she have at first?

Answer: ______________ [4]

Question 20.

Tank A contains $3\frac{1}{2}$ litres of water and Tank B contains $1\frac{3}{4}$ litres of water. How much water must be poured from Tank A into Tank B so that both tanks contain the same amount of water?

Answer: ______________ [4]

End of Quiz

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Answers

Primary 4 Mathematics Quiz - Fractions: Answer Key

Answer 1.

$\frac{13}{5}$

Answer 2.

$2\frac{5}{6}$

Answer 3.

Answer 4.

$\frac{2}{7}$ (with the same numerator, the larger denominator gives the smaller fraction)

Answer 5.

$\frac{3}{5}$ (3 out of 5 equal parts shaded; already in simplest form)

Answer 6.

(a) $5\frac{3}{4}$ (23 ÷ 4 = 5 remainder 3) (b) $\frac{29}{8}$ (3 × 8 + 5 = 29)

Answer 7.

$\frac{3}{8}, \frac{1}{2}, \frac{2}{3}$ (common denominator 24: $\frac{9}{24}, \frac{12}{24}, \frac{16}{24}$ )

Answer 8.

$\frac{7}{10}$ ( $\frac{2}{5} = \frac{4}{10}$ ; $\frac{4}{10} + \frac{3}{10} = \frac{7}{10}$ )

Answer 9.

$1\frac{3}{4}$ (each interval is $\frac{1}{4}$ ; P is 3 intervals after 1)

Answer 10.

$\frac{1}{2}$ ( $\frac{5}{6} - \frac{2}{6} = \frac{3}{6} = \frac{1}{2}$ )

Answer 11.

$\frac{5}{8}$ kg Working: $2 - \frac{3}{4} - \frac{5}{8} = \frac{16}{8} - \frac{6}{8} - \frac{5}{8} = \frac{5}{8}$ kg

Answer 12.

14 pieces Working: $7 \div \frac{1}{2} = 7 \times 2 = 14$

Answer 13.

$2\frac{1}{4}$ litres Working: $3\frac{1}{2} - 1\frac{1}{4} = 2\frac{1}{4}$ L

Answer 14.

20 girls Working: Boys $= \frac{3}{8} \times 32 = 12$ ; Girls $= 32 - 12 = 20$

Answer 15.

$\frac{5}{12}$ Working: Ravi $= \frac{4}{12}$ , Mei $= \frac{3}{12}$ ; Left $= 1 - \frac{4}{12} - \frac{3}{12} = \frac{5}{12}$

Answer 16.

$\frac{19}{24}$ m Working: $4\frac{5}{6} - 1\frac{2}{3} = \frac{29}{6} - \frac{10}{6} = \frac{19}{6}$ ; $\frac{19}{6} \div 4 = \frac{19}{24}$ m

Answer 17.

12 glasses Working: $2\frac{2}{5} = \frac{12}{5}$ ; $\frac{12}{5} \div \frac{1}{5} = 12$

Answer 18.

$1\frac{5}{8}$ m Working: Let the shorter rope be $x$ . Then $x + x + 2\frac{3}{4} = 6$ , so $2x = 3\frac{1}{4}$ and $x = \frac{13}{8} = 1\frac{5}{8}$ m

Answer 19.

$30 Working: After book, remainder$ = \frac{3}{5} $; Food$ = \frac{1}{3} \times \frac{3}{5} = \frac{1}{5} $; Left$ = \frac{2}{5} $of money$ = $12 $; Money at first$ = $12 \times \frac{5}{2} = $30$

Answer 20.

$\frac{7}{8}$ litre Working: Difference $= 3\frac{1}{2} - 1\frac{3}{4} = 1\frac{3}{4}$ L; Amount to pour $= 1\frac{3}{4} \div 2 = \frac{7}{8}$ L (both tanks then hold $2\frac{5}{8}$ L)

End of Answer Key