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Decimal to Fraction Converter

Convert decimals into simplified fractions and mixed numbers using greatest common divisor reduction.

How to use it

  • Enter decimal number to calculate simplified fraction.

Examples

0.753/4
0.1251/8

A decimal converts to a fraction by putting it over a power of 10 (10, 100, 1000, depending on how many decimal places it has) and then simplifying using the greatest common divisor. 0.75 = 75/100, and since both 75 and 100 divide evenly by 25, that reduces to 3/4.

For a repeating decimal like 0.333…, the tool recognises the pattern and converts to the exact fraction (1/3) rather than an approximation.

Where this comes up

  • Converting a decimal measurement (0.375 inch) into the fraction printed on a tape measure or drill bit set
  • Turning a calculator or spreadsheet decimal result into a clean fraction for a recipe or cut list
  • Math homework requiring answers expressed as simplified fractions
Runs entirely in your browser. Nothing you type is uploaded, logged or shared.

Last updated 18 August 2026