# Fractions of amounts worksheet or homework sheet.

Here are some extra practice questions for finding fractions of amounts. If you need to learn the theory before you start then check this page out:

## How to work out a fraction of a number (fractions of numbers help).

**Questions**

1. Work out 2/5 of 35 miles.

2. Work out 3/7 of 56 kilograms.

3. Work out 2/3 of 24 inches.

4. Find 5/7 of 14 centimetres.

5. Work out 3/4 of 48 litres.

6. At a show there are 64 people. 3/8 of the people are girls. Work out the amount of girls at the cinema.

7. In a class there are 21 pupils. 4/7 of the pupils are boys. Work out how many boys are in the class.

8. John is going to drive to his friends house. He fills his car up with 15 gallons of fuel. John uses 2/5 of the fuel on the journey to his friends house. How much fuel did he use?

9. A box contains 30 doughnuts. 2/5 of the doughnuts are raspberry. How many of the dougnuts are not raspberry?

10. Gemma sits a mathematics test with a total of 72 mark. She gets 5/9 of the test correct. How many marks were incorrect?

**Answers**

1. Work out 2/5 of 35 miles.

**35/5 = 7**

**7 x 2 = 14**

2. Work out 3/7 of 56 kilograms.

**56/7 = 8**

**8 x 3 = 24**

3. Work out 2/3 of 24 inches.

**24/3 = 8**

**8 x 2 = 16**

4. Find 5/7 of 14 centimeters.

**14/7 = 2**

**2 x 5 = 10**

5. Work out 3/4 of 48 litres.

**48/4 = 12**

**12 x 3 = 36**

6. At a show there are 64 people. 3/8 of the people are girls. Work out the amount of girls at the cinema.

**64/8 = 8**

**8 x 3 = 24**

7. In a class there are 21 pupils. 4/7 of the pupils are boys. Work out how many boys are in the class.

**21/7=3**

**3 x 4 = 12**

8. John is going to drive to his friends house. He fills his car up with 15 gallons of fuel. John uses 2/5 of the fuel on the journey to his friends house. How much fuel did he use?

**15/5 = 3**

**3 x 2 = 6 gallons**

9. A box contains 30 doughnuts. 4/5 of the dougnuts are raspberry. How many of the doughnuts are not rasberry?

**30/5 = 6**

**6 x 4 = 24 raspberry doughnuts.**

**30 - 24 = 6 other doughnuts.**

10. Gemma sits a mathematics test with a total of 72 mark. She gets 5/9 of the test correct. How many marks were incorrect?

**72/9 = 8**

**8 x 5 = 40 marks correct**

**72 - 40 = 32 marks incorrect**

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