Long cut
1)multiply the numerators together
example: 1/2 * 2/4 = 1*2= 2,so their numerator is 2
2)multiply the denominators together
example: 1/2 * 2/4 =2*4=8 so their denominator is 8
so the answer is 2/8
3) Reduce if possible find their GCF
example 2= 1 and 2 their GCF is 2 so divide the numerator and 8= 1,2,4 and 8
denominator with 2
Short cut
1) use the cancellation method
2) then multiply the numerators together and denominators together
