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Fraction arithmetic
Fraction Calculator
Add, subtract, multiply, or divide two fractions and automatically simplify the answer.
Enter your values
Result
Detailed breakdown
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Your result will appear here
Complete the fields and select Calculate to see a detailed answer.
Formula
How it is calculated
Use a common denominator for addition/subtraction; multiply across for multiplication/division.
Frequently asked questions
How are fractions simplified?
The resulting numerator and denominator are divided by their greatest common divisor.
What is an improper fraction?
An improper fraction has a numerator whose absolute value is greater than or equal to its denominator.
Can a denominator be zero?
No. Division by zero is undefined, so both denominators must be non-zero.