31/2 + ( -6 1/2) =
5/8 - {-2/8} =
- 9/10 - 2/5 =
6 3/5 - (-2 1/5)

-3 1/2 + ( -6 1/2) =  -10

5/8 - {-2/8} =  7/8

- 9/10 - 2/5 =  -4

6 3/5 - (-2 1/5) = 44/5

Step-by-step explanation:

-3 1/2 + ( -6 1/2) =  -7/2 + (-13/2) = -20/2 = -10

5/8 - {-2/8} =  5/8 + 2/8 = 7/8

- 9/10 - 2/5 =  -18-2/5 = -20/5 = -4

6 3/5 - (-2 1/5) = 33/5 + 11/5 = 44/5

i think the answer is b.

step-by-step explanation:

not 100% sure though.