Fraction Calculator
Add, subtract, multiply, and divide fractions. Enter any two fractions to calculate the result in simplified form.
Part of our Math & Percentage Calculators collection.
Fraction Calculator
Free online calculator
How to Use This Calculator
- 1
Enter the first fraction (numerator and denominator).
- 2
Select the operation.
- 3
Enter the second fraction.
- 4
See the result in simplified form.
Fraction Operation Formulas
Add/Subtract: a/b ± c/d = (a×d ± c×b) / (b×d), then simplify Multiply: a/b × c/d = (a×c) / (b×d), then simplify Divide: a/b ÷ c/d = a/b × d/c = (a×d) / (b×c), then simplify
Example Calculation
Example: 1/2 + 1/3
Inputs
num1: 1den1: 2operation: addnum2: 1den2: 3
Result
5/6
1/2 + 1/3 = (1×3 + 1×2)/(2×3) = (3+2)/6 = 5/6
Frequently Asked Questions
How do I add fractions with different denominators?
Find a common denominator (the product of both denominators works, though the LCM is more efficient), convert both fractions, then add the numerators.