How to simplify a fraction
- Enter a numerator and denominator separated by a slash.
- Read the reduced fraction, mixed number, and common factor removed.
- Copy the result for your notes.
Example: -84 / 30
Both integers share a greatest common divisor of 6. Dividing both by 6 gives -14/5, or the mixed number -2 4/5. The minus sign applies to the entire mixed number.
Signs, zero, and exact results
A negative denominator moves its sign to the numerator. Zero reduces to 0/1; a zero denominator is invalid. Integer inputs can contain up to 200 digits each. Decimals, commas, and exponent notation are not accepted. BigInt arithmetic avoids floating-point rounding.
Does this upload my input?
The calculation runs locally in your browser. Your input is not submitted for conversion.