add:

2 1/2 + 3 1/4 + 3 5/8

3 answers

I got 7 3/4
It can't be 7 3/4 because 2 + 3 + 3 = 8. The answer must be larger than 8.

2 1/2 = 2 4/8
3 1/4 = 3 2/8
3 5/8 = 3/5/8

Adding those together, I get 8 11/8 = 9 3/8
2 1/2 + 3 1/4 + 3 5/8

translated into decimals:

2.5 + 3.25 + 3.625 = 9.375 (fraction: 9 3/8)