Fraction of an amount

The Maths Habit Handout to print

What fraction of your body is water?

About 35

Denominator
The bottom number. It tells you how many equal parts to share into.
Numerator
The top number. It tells you how many of the parts you want.

25 of 30

30

How much is each part worth?

36
9

Work out

13 of 21 7

  1. Work out 16 of 42

    7

  2. Work out 18 of 96

    12

  3. There are 56 students on a trip. 17 of them bring a packed lunch. How many bring a packed lunch?

    8

  4. Sam says 15 of 35 is 175. What has he done wrong? Find the right answer.

    ÷ 5, not × 5: 7
45

35 of 45

Divide by the bottom. Multiply by the top.

45 ÷ 5 = 9

9 × 3 = 27

35

27 of 35

Divide by the bottom. Multiply by the top.

35 ÷ 7 = 5

5 × 2 = 10

45

35 of 45

Divide by the bottom. Multiply by the top.

45 ÷ 5 = 9

9 × 3 = 27

54

56 of 54

Divide by the bottom. Multiply by the top.

54 ÷ 6 = 9

9 × 5 = 45

45

35 of 45

Divide by the bottom. Multiply by the top.

45 ÷ 5 = 9

9 × 3 = 27

72

19 of 72

= 8

45

35 of 45

Divide by the bottom. Multiply by the top.

45 ÷ 5 = 9

9 × 3 = 27

49

47 of 49

= 28

45

35 of 45

Divide by the bottom. Multiply by the top.

45 ÷ 5 = 9

9 × 3 = 27

80

710 of 80

= 56

Fraction of an amount worksheet, page 1

Fraction of an amount worksheet, page 2

Answer sheet

  1. 35 of a number is 24. What is the number?

    40

  2. Which is more: 23 of 45 or 34 of 36?

    23 of 45, which is 30

A person has a mass of 50 kg.
About 35 of that is water. How many kilograms is water?

30 kg

  1. Work out 16 of 54

    9

  2. Work out 37 of 63

    27

  3. 25 of a number is 18. What is the number?

    45
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