Percentage to Fraction Converter (and Decimal)

Switch between percentages, fractions and decimals with exact maths and the steps shown.

Fraction

1/8

Percentage
12.5%
Decimal
0.125
Mixed number
1/8
Ratio
1 : 8
Show working
  1. 12.5% = 12.5/100 = 125/1000
  2. 125/1000 = 1/8 (÷ 125)
  3. 1/8 × 100 = 12.5%

How to use

  1. Choose what you have: a percentage, a fraction or a decimal.
  2. Type it (fractions like 3/8 or 1 1/2).
  3. Read the other forms and open "Show working" for the steps.

Good to know

Percent means per hundred: 12.5% = 12.5/100 = 125/1000. Dividing top and bottom by their greatest common divisor (125) gives the lowest terms, 1/8.

Fraction to percent: multiply by 100. 3/8 × 100 = 37.5%. Some fractions never end as decimals: 1/3 = 0.333… is shown as 0.(3), where the digits in brackets repeat forever, so 1/3 = 33.(3)%.

The maths is exact (no floating-point rounding), so 0.1 becomes exactly 1/10. Mixed numbers like 2 3/4 are shown for values above 1.

Questions

What is 12.5% as a fraction?

1/8.

What is 3/8 as a percentage?

37.5%.

How do I write 0.75 as a fraction?

75/100 = 3/4.

What is 1/3 as a percentage?

33.333…% (33 1/3%).

Is anything I type sent to a server?

No. The conversion runs on your device and nothing is stored.

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