As children progress through KS2 they will learn more about fractions in Maths. As well as understanding the different values of fractions, in Year Four children will be exposed to smaller fractions such as twentieths. They will also learn how to go about calculating fractions of other numbers.

Fractions can be written more than one way. For instance ten twentieths could be written as ^{10}⁄_{20} and it has the same value as ^{1}⁄_{2} or ^{2}⁄_{4}. When you are calculating fractions of numbers you divide them by the number below the line and then times the answer by the number above the line. For example, to work out four twentieths of forty you divide 40 by 20, which is 2, then times two by 4 giving the answer 8.

How good are you at calculating fractions of numbers? See how well you know your fractions by playing this quiz.

1.

What is one tenth of 30?

3

6

10

20

To calculate one tenth we divide by 10

2.

Which fraction is the greatest?

3.

If we divide a number by 3 the result will be?

9 ÷ 3 = 3 so ^{1}⁄_{3} of 9 = 3

4.

Which represents one eighth?

5.

Which is the smallest of these fractions?

If the numbers above the line are equal then the fraction with the highest number below the line is smaller

6.

How do we calculate one quarter of a number?

Divide by 2

Multiply by 4

Divide by 4

Multiply by 2

16 ÷ 4 = 4 so ^{1}⁄_{4} of 16 is 4

7.

Which of these fractions is equivalent to one quarter?

One eighth is half of one quarter so two eighths is equivalent to one quarter

8.

Which fraction is greater than ^{1}⁄_{2}?

9.

Which of these fractions is equivalent to ^{3}⁄_{4}?

6 ÷ 2 = 3 and 8 ÷ 2 = 4 so ^{3}⁄_{4} is the same as ^{6}⁄_{8}

10.

Which of these is NOT equivalent to ^{1}⁄_{2}?