Primary 3 · Mathematics · Fractions
Fractions questions for Primary 3 Maths
10 questions to work through online. Answer and you get the working straight away, then a score at the end. No sign-up, and you can retake it as often as you like.
- Adding like fractions
- Subtracting like fractions
- Comparing fractions
- Fraction of a set
- Equivalent fractions
- Fractions of a whole
- Making one whole
- Comparing unit fractions
Answers and explanations for all 10 questions
Every answer with the reasoning behind it. Worth reading after you have tried the set — or on its own, if you are a parent marking it.
3/8 + 2/8 = ?
Answer: 5/8
3 eighths and 2 more eighths make 5 eighths: 5/8. The denominator stays 8.
7/9 − 2/9 = ?
Answer: 5/9
7 ninths take away 2 ninths leaves 5 ninths: 5/9.
Which of these fractions is the largest?
Answer: 6/7
All four are sevenths, so the one with the most sevenths wins: 6/7.
What is 1/4 of 20 sweets?
Answer: 5
A quarter means one of 4 equal parts: 20 ÷ 4 = 5 sweets.
Which fraction is equal to 1/2?
Answer: 3/6
Half of 6 is 3, so 3/6 = 1/2.
2/5 of the pupils in a class are boys. What fraction of the class are girls?
Answer: 3/5
The whole class is 5/5, so 5/5 − 2/5 = 3/5 are girls.
3/8 + ? = 1
Answer: 5/8
One whole is 8/8, and 8/8 − 3/8 = 5/8.
Which of these fractions is the smallest?
Answer: 1/6
The more equal parts a whole is cut into, the smaller each part is — so 1/6 is the smallest.
Ali ate 2/7 of a pizza and Bala ate 3/7 of it. How much of the pizza did they eat altogether?
Answer: 5/7
2/7 + 3/7 = 5/7 of the pizza.
There are 24 marbles in a bag and 1/3 of them are red. How many marbles are red?
Answer: 8
A third means one of 3 equal parts: 24 ÷ 3 = 8 red marbles.