-1/8+-1/2

To solve this, we need to find a common denominator for the two fractions, which is 8.

-1/8 + -1/2

Since the first fraction is already in terms of 8, we just need to convert the second fraction to 8ths:

-1/8 + -4/8

Now that the denominators are the same, we can add the numerators:

(-1 + -4)/8

-5/8

Therefore, -1/8 + -1/2 is equal to -5/8.