Simplifying fractions calculator

This calculator works out the simplest form of a fraction. A fraction is in its simplest form if it cannot be cancelled any further. For example, the fraction $\frac{4}{6}$ can be cancelled by two to give the fraction $\frac{2}{3}$, which cannot be cancelled any further. We find the simplest form by finding the greatest common divisor of the numerator and the denominator and cancelling the fraction by it. We also usually do not want a negative number in the denominator.

For a detailed explanation of what the simplest form of a fraction is, please read the article on fractions.