Fraction Calculator
Add, subtract, multiply, or divide fractions, automatically simplified.
Fraction Calculator
Your Result
How Fraction Operations Work
This calculator performs the standard rules for fraction arithmetic: addition and subtraction find a common denominator first, multiplication multiplies numerators and denominators directly, and division multiplies by the reciprocal of the second fraction. Every result is automatically reduced to its simplest form using the greatest common divisor.
Frequently Asked Questions
How is a fraction simplified?
The calculator finds the greatest common divisor (GCD) of the numerator and denominator and divides both by it, reducing the fraction to its lowest terms.
Can I use negative numbers?
Yes, enter a negative numerator to represent a negative fraction, the calculator handles signs correctly.
What if my denominator is zero?
Division by zero is undefined, the calculator will alert you if a denominator of zero is entered.