Percentage to Fraction Calculator
Convert a percentage into its simplest fraction form, showing both the raw and simplified fractions.
Your results
Calculation breakdown
- Fraction
- Percentage ÷ 100, simplified using the GCD
Worked example
62.5% simplifies to 5/8, since both 625/1000 share a greatest common divisor of 125.
Assumptions
- Percentages are rounded to one decimal place before simplifying.
- Negative percentages produce a negative fraction.
How this calculator works
This calculator turns a percentage into a fraction by placing it over 100 and then simplifying using the greatest common divisor. It shows both the unsimplified and fully reduced fraction so you can see the working.
Frequently asked questions
How is the fraction simplified?
The calculator finds the greatest common divisor of the numerator and denominator and divides both by it to reduce the fraction to its simplest form.
Can I enter decimal percentages like 12.5%?
Yes, decimal percentages are supported and are converted to a whole-number fraction before simplifying.
What does a percentage over 100% look like as a fraction?
It shows as an improper fraction, for example 150% simplifies to 3/2.
Editorial review and responsibility
Reviewed by the CalcAussie editorial team on 21 September 2026. Review scope: Method, Australian terminology, material assumptions, source links and user-facing limitations.
Calculator results remain estimates based on the figures entered. Check material decisions against current official information and report a suspected error so it can be reproduced and corrected.