Fractions Calculator
Enter two signed fractions to calculate an exact simplified result using integer arithmetic.
A QUICK WALKTHROUGH
How to use this tool
- Enter numerators and non-zero denominators.
- Choose an operation.
- Calculate and review the simplified fraction and decimal check.
Exact rational arithmetic
All operations use BigInt integer arithmetic and reduce the result to lowest terms.
Input limits and zero rules
Each field accepts a signed integer of up to 1,000 digits. Denominators cannot be zero, and division by a zero fraction is rejected.
Local processing
All parsing and calculation happen in this browser; values are not uploaded.
GOOD TO KNOW
Common questions
Which operations are supported?
Addition, subtraction, multiplication, and division are supported.
Can I use negative values?
Yes. Negative numerators and denominators are normalized exactly.
Are decimals used for the answer?
The fraction result is exact. A decimal truncated to 12 places is shown only as a display check.