Primary 5 · Mathematics · Fractions
Fractions questions for Primary 5 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 unlike denominators
- Subtracting unlike denominators
- Multiplying by a whole number
- Fraction of a quantity
- Comparing fractions
- Mixed numbers
- Word problem
- Working backwards
- Fraction of a remainder
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.
2/3 + 1/4 = ?
Answer: 11/12
Use twelfths: 2/3 = 8/12 and 1/4 = 3/12, so the total is 11/12.
3/4 − 2/5 = ?
Answer: 7/20
Use twentieths: 3/4 = 15/20 and 2/5 = 8/20, so 15/20 − 8/20 = 7/20.
3/8 × 4 = ?
Answer: 1 4/8
3/8 × 4 = 12/8, which is 1 4/8, or 1 1/2.
What is 5/6 of 72?
Answer: 60
72 ÷ 6 = 12 for one sixth, and 5 × 12 = 60.
Which of these fractions is the largest?
Answer: 5/8
5/8 is more than a half, while 3/8, 2/5 and 4/9 are all less than a half.
Write 2 3/5 as an improper fraction.
Answer: 13/5
2 whole ones are 10/5, plus 3/5 makes 13/5.
A jug held 3/4 litre of milk. 1/3 litre was poured out. How much milk was left?
Answer: 5/12
3/4 = 9/12 and 1/3 = 4/12, so 9/12 − 4/12 = 5/12 litre.
2/5 of a number is 18. What is the number?
Answer: 45
2 units = 18, so 1 unit = 9, and the whole number is 5 × 9 = 45.
Sara spent 1/3 of her money on a book and 1/4 of it on lunch. What fraction of her money did she have left?
Answer: 5/12
She spent 4/12 + 3/12 = 7/12, so 12/12 − 7/12 = 5/12 was left.
A recipe needs 2/3 cup of sugar. How much sugar is needed for 5 batches?
Answer: 3 1/3
2/3 × 5 = 10/3, which is 3 1/3 cups.