Fraction to Percentage Table (1/2 to 1/20)

How to use the table

• Values are rounded to two decimals. 1/3 = 33.33%, 1/7 = 14.29%.
• For a numerator above 1, multiply the unit fraction: 3/8 = 3 × 12.5% = 37.5%, and 5/6 = 5 × 16.67% = 83.33%.
• Going back: 12.5% = 1/8, 37.5% = 3/8, 62.5% = 5/8, 87.5% = 7/8. Also 16.67% = 1/6, 33.33% = 1/3, 66.67% = 2/3.

Worked examples

• 87.5% of 640 = 7/8 of 640 = 640 ÷ 8 × 7 = 560.
• A price rises from 80 to 90. The rise is 10, and 10/80 = 1/8 = 12.5%.
• Reading a data interpretation table: if a value is 1/5 of the total, it is 20%, no division needed.

Fraction → percentage

1/2

50%

1/3

33.33%

1/4

25%

1/5

20%

1/6

16.67%

1/7

14.29%

1/8

12.5%

1/9

11.11%

1/10

10%

1/11

9.09%

1/12

8.33%

1/13

7.69%

1/14

7.14%

1/15

6.67%

1/16

6.25%

1/17

5.88%

1/18

5.56%

1/19

5.26%

1/20

5%