To calculate one quarter of a number, we divide by 4.
Fractions (Year 4)
As you go through KS2 Maths, you'll discover more about fractions. In Year Four, you'll learn about smaller fractions like twentieths and how to calculate them.
Fractions can be written in different ways. For example, 10 twentieths is the same as 10/20, 1/2, or 2/4. When you calculate fractions, divide the number by the bottom one and then multiply by the top one. For instance, to find four twentieths of forty, divide 40 by 20 (equals 2), then multiply by 4 to get the answer 8.
Check out our 'How To Teach My Child About Fractions' article for helpful tips on explaining parts of numbers.
Join the Quiz Adventure! Read More About The Benefits1.
Which represents one eighth?
1⁄4
1⁄8
1⁄20
1⁄5
1⁄8 is the same as 1 divided by 8
2.
Which fraction is greater than 1⁄2?
1⁄4
5⁄10
2⁄6
11⁄20
10⁄20 is equivalent to 1⁄2 so 11⁄20 must be more
3.
What is one tenth of 30?
3
6
10
20
To calculate one tenth we divide by 10
4.
Which of these fractions is equivalent to one quarter?
2⁄8
1⁄3
3⁄6
2⁄5
One eighth is half of one quarter so two eighths is equivalent to one quarter
5.
Which of these fractions is equivalent to 3⁄4?
2⁄3
6⁄10
4⁄6
6⁄8
6 ÷ 2 = 3 and 8 ÷ 2 = 4 so 3⁄4 is the same as 6⁄8
6.
Which of these is NOT equivalent to 1⁄2?
2⁄4
3⁄6
2⁄3
4⁄8
2⁄3 is more than 1⁄2
7.
Which fraction is the greatest?
4⁄10
5⁄6
2⁄3
11⁄20
5⁄6 is 1⁄6 less than 1
8.
If we divide a number by 3 the result will be?
1⁄4
1⁄10
1⁄6
1⁄3
9 ÷ 3 = 3 so 1⁄3 of 9 = 3
9.
Which is the smallest of these fractions?
1⁄4
1⁄8
1⁄20
1⁄6
If the numbers above the line are equal then the fraction with the highest number below the line is smaller
10.
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
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