42/72
factor out a 6
6*7/6*12
eliminate the 6; top and bottom
= 7/12
------------
simplified
7/12
7/12
72/42 = 12/7
one over two
It is: 84/72 = 7/6 simplified
36/42
1/2
5/16th
13 over 36
18/42 = 3/7
42/48 = 7/8
It is: 56/72 = 7/9 by dividing 56 and 72 by their HCF