99 + 99 + 88 + 88 + 72 + 72 = 518
88 is an even number 99 is an odd number 99 - 88 =11
0.8889
The sum of 88 and 11 is 99.
8712
187
-88
88
From 88 to 99 will interchange.
88/99 - 81/99 = 7/99
The LCM = 792
that's simple... the highest number: 99 minus the lowest number: 43 99-43=56