Method

A percentage is a number per one hundred. The converter writes the entered decimal percentage over 100, removes the decimal-place scale, and then divides the numerator and denominator by their greatest common divisor. This preserves a finite decimal percentage exactly instead of approximating it with an unrelated denominator.

Worked example

When this is useful

Fraction form can make proportions easier to compare, explain, or use in classroom work. For example, 25% is immediately recognizable as 1/4, while 12.5% is 1/8. The conversion changes representation only; it does not change the underlying value.

Privacy

The entered percentage is processed locally in the browser and is not sent to a calculation service.

Limitations

This version accepts ordinary finite decimal notation rather than scientific notation. Very long decimal inputs are rejected to keep integer arithmetic reliable. Repeating decimals require a different representation because a finite typed decimal cannot encode an infinite repeating sequence exactly.

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