Calculators & Converters
Fraction Calculator
The Fraction Calculator performs the four basic operations on two fractions -- addition, subtraction, multiplication and division -- and automatically simplifies the result to its lowest terms.
It also shows the decimal equivalent of the result, so you can quickly cross-check your answer.
How to Use the Fraction Calculator
- Open the Fraction Calculator.
- Enter the numerator and denominator of the first fraction.
- Choose an operation (+, −, ×, ÷).
- Enter the numerator and denominator of the second fraction.
- Read the simplified result and its decimal equivalent.
Frequently Asked Questions
Does the result get simplified automatically?
Yes -- the calculator finds the greatest common divisor of the resulting numerator and denominator and reduces the fraction to its simplest form.
What happens if I enter a zero denominator?
The calculator will show a clear error message rather than an invalid result, since dividing by zero isn't mathematically defined.
Can I use negative numbers?
Yes, negative numerators and denominators are both supported, and the sign of the result is handled correctly.
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