Fraction Calculator
Add, subtract, multiply, or divide two fractions.
Enter your numbers and select Calculate to see results.
About This Calculator
This calculator performs basic arithmetic on two fractions — addition, subtraction, multiplication, or division — and simplifies the result to its lowest terms, also showing the decimal equivalent.
How This Is Calculated
a/b + c/d = (ad + bc) / bd (then simplified)
1/2 + 1/3 = 5/6 ≈ 0.8333
Assumptions
- Results are automatically simplified to lowest terms using the greatest common divisor.
Frequently Asked Questions
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Last updated January 15, 2026. Results are estimates for informational purposes only — read our disclaimer.