Math
Fraction Calculator
Add, subtract, multiply, or divide two fractions and simplify the result.
Fraction Calculator
Result
Ready
Guide
Fraction Calculator basics
Combine two fractions and reduce the answer to its simplest form.
Formula
How the calculation works
Add
a/b + c/d = (ad + bc) / bdSubtract
a/b - c/d = (ad - bc) / bdMultiply
a/b x c/d = ac / bdDivide
a/b / c/d = ad / bcExample
Example calculation
1/2 + 1/3
5/6
2/3 x 3/4
1/2
Notes
Assumptions
- Denominators cannot be zero.
- Operation uses 1 add, 2 subtract, 3 multiply, or 4 divide.
FAQ
Fraction Calculator FAQ
What is the Fraction Calculator for?
It uses the fields on this page and applies the formula shown below the result. Check the assumptions before using the number outside the page.
Can I use decimals?
Yes. Decimal inputs are supported unless the field represents a count.
How should I use the result?
Treat it as a calculator result, not a full plan. Round it or adjust it when the real situation calls for it.
Sources. Common calculator formula, independently implemented for NumOwl.
Disclaimer. Use this result as a check or starting point. For finance, health, engineering, or purchasing decisions, verify the numbers before acting on them.