Add, subtract, multiply, and divide fractions with automatic simplification
Step 1: Enter the numerator (top number) and denominator (bottom number) for the first fraction.
Step 2: Select the operation you want to perform (+, -, ×, ÷).
Step 3: Enter the numerator and denominator for the second fraction.
Step 4: The result will automatically calculate and simplify to lowest terms.
Add, subtract, multiply, and divide fractions with ease
Results are automatically simplified to lowest terms
See decimal equivalents for all fraction results
Shows original and simplified fractions for clarity
Clear visual representation with numerator and denominator
Real-time results as you enter values
To add fractions, find a common denominator, then add the numerators. For example: 1/2 + 1/3 = 3/6 + 2/6 = 5/6. Our calculator finds the common denominator automatically and simplifies the result.
Divide both numerator and denominator by their greatest common divisor (GCD). For example, 6/8 simplifies to 3/4 by dividing both by 2. Our calculator automatically simplifies all results to lowest terms.
To multiply fractions, multiply the numerators together and the denominators together. For example: 1/2 × 3/4 = (1×3)/(2×4) = 3/8. The result is then simplified if possible.
To divide fractions, multiply the first fraction by the reciprocal of the second. For example: 1/2 ÷ 3/4 = 1/2 × 4/3 = 4/6 = 2/3. Flip the second fraction and multiply.
This calculator works with proper and improper fractions. To use mixed numbers (like 2 1/2), first convert them to improper fractions (5/2). Multiply the whole number by the denominator and add the numerator.
Subtracting fractions is similar to adding: find a common denominator, then subtract the numerators. For example: 3/4 - 1/2 = 3/4 - 2/4 = 1/4. The calculator handles this automatically.
The GCD is the largest number that divides evenly into both the numerator and denominator. It's used to simplify fractions. For example, the GCD of 12 and 18 is 6, so 12/18 simplifies to 2/3.
Divide the numerator by the denominator. For example, 3/4 = 3 ÷ 4 = 0.75. Our calculator shows both the fraction and decimal equivalent for every result.