Fraction to Decimal Calculator

Dividing the numerator by the denominator gives the decimal. Some fractions end (3/8 = 0.375); others repeat forever (1/3 = 0.333…). The calculator finds the repeating part exactly.

Results update as you type.

Decimal

0.41(6)

digits in brackets repeat forever

Rounded
0.4166666667
Percentage
41.666667%
Simplest form
5/12

About this calculator

Digits in brackets repeat without end.

How to use it

  1. Enter the numerator.
  2. Enter the denominator.
  3. Read the decimal.

The formula

Decimal = numerator ÷ denominator by long division
repeating part
digits between brackets

Worked example

5/12

  1. 5 ÷ 12 = 0.41666…
  2. Written exactly: 0.41(6); about 41.67%.

What the result means

A fraction in simplest form ends only if its denominator has no prime factors other than 2 and 5.

Assumptions

  • Whole-number numerator and denominator.

Limitations

  • Very long repeating parts are cut after 200 digits.

Frequently asked questions

What is 1/3 as a decimal?

0.(3), that is 0.333… repeating.

Why do some fractions repeat?

Their denominator has a prime factor other than 2 or 5.

What is 7/8 as a decimal?

0.875.

Last reviewed on 3 October 2026. Found a mistake? Tell us.