10% as a fraction
Per cent means out of 100: 10% is 10/100, which simplifies to 1/10.
The answer
10% = 1/10
How to write 10% as a fraction
Per cent means out of 100, so write the percentage over 100: 10% = 10/100.
Simplify by dividing the top and bottom by the same number. In one go, divide by the highest common factor, 10: 10/100 = 1/10.
1 and 10 share no factor except 1, so 1/10 is the simplest form.
As a decimal, 10% = 0.1: divide by 100, which moves each digit two places to the right.
To check, divide back: see 1/10 as a decimal and 1/10 as a percentage.
Using 1/10 to find 10% of an amount
Knowing that 10% is 1/10 makes finding 10% of an amount quick: divide by 10.
10% of 40 = 40 ÷ 10 = 4
The bar model below shows the same steps on 10% of 40. Change the numbers to try your own.
A bar model that finds a percentage of any amount, step by step. 10% of 40 is 4.
See 1/10
More percentages as fractions
Questions parents ask
What is 10% as a fraction?
10% = 10/100 = 1/10 in its simplest form.
What is 10% as a decimal?
10% = 0.1. Divide by 100: the digits move two places to the right.
How do you find 10% of an amount?
10% is 1/10, so divide by 10. For 10% of 40: 40 ÷ 10 = 4.
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