Fraction Calculator
Add, subtract, multiply, and divide fractions. Simplify results and convert to decimals instantly.
÷
÷
-
Result
-
-
Decimal: -
How to use the Fraction Calculator
- Enter the numerator and denominator of the first fraction.
- Choose the operation (+, −, ×, ÷).
- Enter the second fraction.
- Click Calculate to get the simplified result.
Formula used
a/b + c/d = (ad + bc)/bd a/b × c/d = ac/bd a/b ÷ c/d = ad/bc
Worked example
Examples
1/2 + 1/3 = 3/6 + 2/6 = 5/6
3/4 × 2/5 = 6/20 = 3/10
3/4 ÷ 2/5 = 3/4 × 5/2 = 15/8 = 1 7/8
Simplifying fractions
Divide the numerator and denominator by their greatest common divisor (GCD). 18/24 ÷ 6 = 3/4. To convert an improper fraction to a mixed number, divide: 15/8 = 1 remainder 7, so 1 7/8. To convert a fraction to a percentage, divide and multiply by 100: 3/8 = 0.375 = 37.5%.
Tips for accurate results
- The denominator can never be zero.
- To divide, multiply by the reciprocal of the second fraction.
- Use the LCM of denominators to add fractions with small numbers.
Frequently Asked Questions
Convert them to a common denominator, then add the numerators.
Divide the numerator by the denominator.
2/3 × 90 = 60.
Related Calculators
Content reviewed by Vinod, Easy Smart Calculator · Last updated October 2026
How to Use
- Enter the first fraction (numerator ÷ denominator)
- Select an operation (+, −, ×, ÷)
- Enter the second fraction
- Click Calculate to get the result
- Result is automatically simplified
Fraction Operations
- Addition: Find common denominator, add numerators
- Subtraction: Find common denominator, subtract numerators
- Multiplication: Multiply numerators and denominators
- Division: Multiply by reciprocal of second fraction