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Year 3 fractions of amounts worksheets

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Year 3 · Fractions of amounts

Finding fractions of amounts

1)of15=
2)of12=
3)of30=
4)of20=
5)of10=
6)of15=
7)of28=
8)of20=
9)of80=
10)of40=
11)of50=
12)of80=
13)of16=
14)of20=
15)of8=
16)of9=
17)of25=
18)of60=
19)of20=
20)of35=
ticked. · free UK primary worksheetsSheet #00137

Answer key

For marking

Year 3 · Fractions of amounts · Finding fractions of amounts

1)of15=12
2)of12=9
3)of30=18
4)of20=2
5)of10=5
6)of15=3
7)of28=7
8)of20=8
9)of80=56
10)of40=24
11)of50=45
12)of80=72
13)of16=4
14)of20=4
15)of8=2
16)of9=6
17)of25=10
18)of60=6
19)of20=14
20)of35=28
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What Year 3 fractions of amounts covers

In Year 3, children find fractions of a quantity — both unit fractions like 1/4 of 12 and non-unit fractions like 3/4 of 20. They divide the amount by the denominator and then multiply by the numerator. Every quantity on these sheets divides exactly, so the answer is always a whole number — the right level for Year 3. Every sheet is A4, print-ready, and comes with an answer key.

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Questions parents ask

What does "finding fractions of amounts" mean in Year 3?

Children work out a fraction of a quantity — for example 3/4 of 20. They divide the amount by the denominator (20 ÷ 4 = 5) and multiply by the numerator (5 × 3 = 15). Year 3 covers both unit fractions (1/3, 1/4) and non-unit fractions (2/3, 3/4) with small denominators.

Are the answers always whole numbers?

Yes. Every quantity is chosen to divide exactly by the denominator, so the answer is always an exact whole number — no leftover, no decimal. That keeps the sheet at the right level for Year 3 and the answer key unambiguous.

Are the answers included?

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