lesson
Find a fraction of an amount
1 · Learn
A unit fraction has 1 as its numerator. To find one fifth of 20, share 20 into five equal groups: each group is 4.
For three fifths, take three of those groups. Three groups of four make 12. The denominator tells you the number of equal parts; the numerator tells you how many parts to take.
2 · Worked example
One quarter of 24 is 6. Three quarters of 24 is 18.
3 · Your turn
Find 2/3 of 18. Show the size of one third first.
Check your answer
One third is 6. Two thirds is 12.
4 · Apply your learning
Share counters equally, then circle the requested number of groups. Keep the whole amount visible.
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