3.4286
21 can not be divided by 2, ergo it can not be a common factor with 72
30.24 divided by 0.42 = 72
2
0.19
21 - 72 = -51
72 divided in 4 = 18
72 divided 5 = 14.4
1
72 divided by 32 because u say the biggest number first that's wut my teacher told me
0.0691
7