40
6z + 28 = 12z + 10 18 = 6z 3 = z
18 + 10 + 28 + 10 = 66
18/12 + 28/12 + 39/12 = 85/12 or 7 and 1/12
18 + 10 = 28
40
6z + 28 = 12z + 10 18 = 6z 3 = z
18 + 10 + 28 + 10 = 66
28 + 18 = 46
18/12 + 28/12 + 39/12 = 85/12 or 7 and 1/12
18 + 10 = 28
12 + 28 + 24 = 64
1+1.8=2.8
28 + 12 = 40
12 out of 28 is 42.86%
3/7 = 6/14 = 12/28 = 18/42 .... etc
28 + 9 + 32 + 7 = 76