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Simplify Fractions Calculator

Reduce a fraction to lowest terms, or convert a fraction to a decimal and a percentage, from a single fraction or decimal you enter.

About Simplify Fractions Calculator

A fraction is in lowest terms when its numerator and denominator share no factor other than 1. This tool divides both by their greatest common divisor, found with the Euclidean algorithm. A decimal is first written over a power of ten (0.625 = 625/1000) and then reduced to 5/8. Only terminating decimals with up to nine decimal places convert exactly; repeating decimals such as 0.333 are treated as typed.

Also known as: Fraction to Decimal Calculator.

How to use Simplify Fractions Calculator

  1. Fill in "Fraction or decimal".
  2. The result appears below and updates as you type.
  3. Copy the result with the copy button, or download it as a file where that is offered.

Questions about Simplify Fractions Calculator

How do I convert a decimal to a fraction?

Write the digits after the decimal point over 1 followed by that many zeros, then simplify. 0.625 has three decimal places, so it is 625/1000, which reduces to 5/8.

Can it convert a repeating decimal like 0.333... to 1/3?

No. It converts exactly what you type, so 0.333 becomes 333/1000. For a repeating decimal, enter the fraction itself, such as 1/3.

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