The first step would be to find how many players do both activties. So we would need to add 3/8 + 4/5.
I think you may now how to add fractions, but I will explain it anyways.
1. Figure out a common denominator, and find the equivlent fraction
2. Add
15/40 + 32/40 = 37/40
Then we need to figure how many members the fraction 37/40 represents.
As the fraction is already out of 40,
it would represent 37 members.
Therefore, 37 members do both activites.