if you have lets say 1/2/2/3
you flip the second fraction and multiply across
1/2*3/2
3/4
.75
To divide 2 fractions, you reverse one of them and then multiply the numerators (top numbers) together and the denominators (bottom numbers) together.
Example if you want to divide 1/4 by 2/3, reverse 2/3 to be 3/2 and now multiply:
1/4 x 3/2 = ( 1*3 ) / ( 4*2 ) = 3/8
