A fraction is in lowest terms (simplest form) when its numerator and denominator share no common factor other than 1. For example 18/24 simplifies to 3/4 because both numbers divide by 6.
Enter a numerator and denominator and the calculator finds their greatest common divisor, divides both by it, and shows the simplified fraction along with the mixed-number form and the decimal value.
| Fraction | 18/24 |
| Simplified fraction | 3/4 |
| As a mixed number | 3/4 |
| Greatest common divisor | 6 |
| As a decimal | 0.75 |
The greatest common divisor is 6, so 18/24 becomes 3/4.
Try this example →| Fraction | 35/10 |
| Simplified fraction | 7/2 |
| As a mixed number | 3 1/2 |
| Greatest common divisor | 5 |
| As a decimal | 3.5 |
Dividing both by 5 gives 7/2, which is 3 1/2 as a mixed number.
Try this example →It means the numerator and denominator have no common factor except 1, so the fraction cannot be written with smaller whole numbers.
Yes. A minus sign on either the numerator or the denominator is treated as a negative fraction, and the result keeps the sign on the top.
Then the greatest common divisor is 1 and the fraction is returned unchanged.