none smart one
Seven is the number of eights you are seeking.
5 3/8
5*8 = 40.
Five of them.
5/8 of 72 is 45.
six
7 eights or 56
If you mean 5/8 of 40 then it is 25
40/8 = 5
There are zero eights in 3 and a half. The number 3.5 is less than 8, so it cannot contain any whole eights.
11 sixteenths
2 eights and 5 eights