Enter your details
Result
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Enter your details to calculate.
Simplified fraction
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Decimal result
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Unreduced result
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Working
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How to calculate with fractions
Enter both fractions and choose the operation to see exact and decimal results.
1
Enter the first fraction
Provide its numerator and a non-zero denominator.
2
Choose an operation
Select addition, subtraction, multiplication, or division.
3
Review the result
Read the reduced fraction, decimal value, unreduced result, and working.
Frequently Asked Questions
Why can a denominator not be zero?
A fraction represents division, and division by zero is undefined.
How are negative signs handled?
The calculator moves a negative denominator sign to the numerator.
What does simplest form mean?
The numerator and denominator have no common whole-number factor greater than one.
How do I add fractions?
Use a common denominator, then add the cross-products.
How do I divide fractions?
Multiply the first fraction by the reciprocal of the second.
Can the answer be a decimal?
Yes. The exact fraction is also converted to a decimal value.
Can I enter negative numerators?
Yes. Signed whole-number numerators are supported.