Formula
The greatest common divisor divides the numerator and the denominator:
Simplified fraction = numerator / gcd over denominator / gcd
A negative sign is kept on the numerator.
Assumptions
- The denominator is not zero.
- Both parts are whole numbers.
Worked example
12/18 simplifies to 2/3.
Input definitions
- Numerator
- The top number.
- Denominator
- The bottom number.
Limitations
Results are rounded for display. This is a classroom calculation, not a measurement from a lab or a financial filing.
Questions
What if it is already reduced?
The same fraction is shown.
Does this do arithmetic?
No. The fraction calculator adds, subtracts, multiplies, or divides two fractions.