Cancelling fractions

This calculator expands or cancels fractions.

What shall be done with the fraction?

Expand by
Cancel by
Cancel as far as possible

To expand or to cancel a fraction, you have to multiply / divide the numerator as well as the denominator of the fraction with the same number.

Cancelling fractions

What does it mean to cancel a fraction?

It means that you divide the numerator and the denominator of the fraction by the same number. This makes the fraction better understandable.

Can a fraction be cancelled infinite times?

No. This is only possible as long as numerator and denominator have no common divisors. To cancel a fraction as far as possible immediately, cancel by the greatest common divisor of the numerator and the denominator.