5/36
45/72 = 5/8
20 over 72.[divide by 4]5 over 18[5 is prime, 18 is not divisible by 5; no further simplification possible]
47/72 is already simplified
27/72 simplified is 5/18
It is: 72/96 = 3/4 simplified
-13/72 cannot be simplified.
55/72
No.
72/100 = 18/25
72/83 is simplified.
It is 72/100, which can be simplified, if required.