How to use this calculator
Enter the requested values, review any options that affect the calculation, and select Calculate. The main answer appears beside the form, with supporting details below it.
How the calculation works
A fraction is divided to get a decimal. A decimal is multiplied by 100 to get a percentage. Fractions are reduced using their greatest common divisor.
Example
3/4 = 0.75 = 75%.
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Frequently asked questions
Can the denominator be zero?
No. Division by zero is undefined, so the calculator will explain the error.
Are negative values supported?
Yes. The negative sign is kept in the numerator of the simplified fraction.