Fraction Calculator
Add, subtract, multiply or divide two fractions and simplify the exact result.
Free · No signup · No watermark · On-device processing
Use the tool
How to use Fraction Calculator
- Enter each fraction as a whole numerator and nonzero denominator.
- Choose addition, subtraction, multiplication or division.
- Run and read the exact reduced fraction.
How this tool handles your input
Numerators and denominators use integer BigInt arithmetic. The result is a reduced fraction with a positive denominator.
Enter whole-number parts, not mixed-number notation. Denominators and a fraction used as a divisor cannot be zero.
Example: 1/2 + 1/3 → 5/6
Privacy and browser support
Your input is handled in this browser tab. Selected files and entered text are not sent to Varento Tools by this tool. Some specialized libraries load only when needed. A browser with JavaScript and sufficient device memory is required. Read our local-processing explanation.
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Frequently asked questions
Is this tool free without daily usage limits?
Yes. Varento Tools has no signup, accounts, usage-count caps, paywalls or watermarks. Device memory, format support and browser restrictions can still limit technically demanding files.
What input and output rules apply?
Numerators and denominators use integer BigInt arithmetic. The result is a reduced fraction with a positive denominator.
What are the limitations?
Enter whole-number parts, not mixed-number notation. Denominators and a fraction used as a divisor cannot be zero.
Is my input uploaded?
No. This tool processes your input in the current browser tab, without a processing API or account.