What is the Decimal to Fraction Calculator?
Convert a decimal number into a fraction in lowest terms.
Enter decimal number and the Decimal to Fraction Calculator returns fraction and percentage. Results update as you type, and nothing you enter leaves your device.
How it is calculated
Write the decimal over a power of 10, then divide top and bottom by their greatest common divisor
How to use it
- Enter decimal number.
- Read fraction in the results panel. It updates as you type.
- Change any value to compare scenarios, or use Share to send the result as a link.
Worked example
Common questions
What formula does the Decimal to Fraction Calculator use?
It uses: Write the decimal over a power of 10, then divide top and bottom by their greatest common divisor.
What do I need to use the Decimal to Fraction Calculator?
You need decimal number. Sensible starting values are filled in so you can see how it works straight away.
Is the Decimal to Fraction Calculator free, and is my data stored?
It is free with no sign-up. The calculation runs in your browser, so the values you enter are not sent to or stored on our server.