Enter values and select Calculate to see your result.
Add, Subtract, Multiply & Divide
Enter two fractions, select an operation, and get a simplified result.
How to use the Fraction Calculator
Add, subtract, multiply or divide fractions and simplify the result.
- Enter both numerators and denominators.
- Choose the operation.
- Calculate the simplified result.
Fraction Calculator formula
Fractions use common denominators for addition/subtraction; multiplication and division follow standard fraction rules.
Worked example
Inputs: 1/2 + 1/3.
What to expect: The simplified result is 5/6.
How to read your result
A zero denominator is invalid; dividing by a fraction multiplies by its reciprocal.
Frequently asked questions
Can I enter negatives?
Yes. Use a negative numerator or equivalent signed value.
Why simplify?
Reduced form makes equivalent fractions easier to compare.