Question

Subtract.

–4
1
2
−
8
1
2
=

Answer 1

-4 1/2 − 8 1/2 = −(4 1/2 + 8 1/2) = −(12 + 1) = −13

(Or using improper fractions: −9/2 − 17/2 = −26/2 = −13.)