What is negative 4/5 plus negative 3/8

-(4/5)+(-3/8)
-(4/5)-(3/8)
Least common denominator of 8 and 5 is 40.
5 times what equals 40? Add the answer to the numerator of -(4/5) and the answer is -(32/40).
Do the same to the next fraction and the answer is -(15/40).
Add the two together and the answer is -(47/40).

Each friend can get 3/8 pizza