Decimal to fraction converter
Turn decimals into simple fractions and back.
Fraction
3/4
Decimal
0.75
Calculates in your browser. Nothing is uploaded.
How to use this tool
Enter a decimal and click To fraction to get the simplest fraction. Or enter a numerator and denominator to see the decimal value.
How it works
The decimal is written over a power of ten, then both numbers are divided by their greatest common divisor to reduce the fraction to its simplest form.
fraction = decimal over 10^places, reduced by the GCD
A real example
A recipe lists 0.75 cups but your measuring cup is marked in fractions. The tool shows that is exactly three quarters, so you can measure it without guessing.
Common questions
What about repeating decimals?
Numbers like 0.333 are converted as written, so they give a close fraction rather than an exact one third. Round your input to the precision you need.