72 over 306 in lowest terms is 4/17
72 over 480 in lowest terms is 3/20
72 over 132 reduced to lowest terms is 6/11
72 over 132 in lowest terms is 6/11
144 over 122 in lowest terms is 72/61 or 111/61
48/72 = 2/3
12/72 = 1/6
It is: 3/8
9/10
6/5
4/9
8 over 72 = 1/9