How do you add this?

Question

-5/6 + 1/2

-5/6 + 1/2= 8/6

I know to find the lowest common denominator,which is 6, but the
numerator is larger than the denominator
which is 8/6. How do I solve?

Wouldn't the answer be -1/3?

yes, the correct answer is -1/3

They must have read both numbers as positive to get 8/6