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Decimal to Fraction Calculator

Decimal to Fraction Calculator

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This calculator writes a decimal as a fraction and simplifies it, e.g. 0.75 = 3/4.

Turning a decimal into a fraction means recognizing what power of 10 it's really being divided by — 0.75, for instance, is really 75 hundredths — and then simplifying that fraction down to its lowest terms. Enter any decimal number here and this calculator handles both steps automatically, showing the fraction in its simplest form. It works for negative decimals too, and is a quick way to get an exact fraction for use in another calculation or homework problem.

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  • How the conversion works: the decimal is written over a power of 10 matching its number of decimal places (e.g. 0.75 = 75/100), then simplified.
  • The result is always already reduced to lowest terms, so 75/100 becomes 3/4.
  • Works for negative decimals too: the sign is carried on the numerator.

How do I convert a decimal to a fraction by hand?

Write the decimal digits over 1 followed by as many zeros as there are decimal places, then simplify by dividing both by their greatest common divisor.

What is 0.75 as a fraction?

0.75 = 75/100, which simplifies to 3/4.