both 20 and 24 are divisible by 4, so divide both by 4
(20/4)/(24/4) = 5/6
but they are also divisible by 2
10/12
as long as you do the same to the top of the fraction as you do to the bottom of the fraction, then they will be equivalent fractions, e.g. multiply both by 2 or 2.5
