Fraction Calculator
Add, subtract, multiply, or divide two fractions, with the result simplified to lowest terms.
- Free to use
- Accurate results
- No registration required
- Works on all devices
Enter two fractions and an operation to get the simplified result.
Your result
5
Result numerator
Result denominator6
As a decimal0.833
AI explanation
Formula
Add/subtract via a common denominator; multiply numerators and denominators directly; divide by multiplying by the reciprocal — then simplify to lowest termsWorked example
1/2 + 1/3
| Field | Value |
|---|---|
| Numerator 1 | 1 |
| Denominator 1 | 2 |
| Numerator 2 | 1 |
| Denominator 2 | 3 |
| Operation | add |
| Result numerator | 5 |
| Result denominator | 6 |
| As a decimal | 0.833333 |
Assumptions
- The result is always simplified to lowest terms using the greatest common factor.
Frequently asked questions
How do you add fractions with different denominators?
Convert both fractions to a common denominator (the product of the two denominators works, even if it isn't the smallest common denominator), add the numerators, then simplify.
Is the result always simplified?
Yes — the fraction result is automatically reduced to lowest terms.
Can I use negative numerators or denominators?
Yes — negative values are supported and the sign is normalized onto the numerator in the simplified result.