Answer :- 7½ or 8 ( explained below)
Explanation:-
Given :-
- 9 halves for family
- 6 halves for friends
So in total :- 15 halves for both of them
It means :- 7½ cupcakes in total u required
if u can buy an half cupcake then u need to buy :- 7½
If u can't but an half cupcake then u need to buy :- 8