Simplify -1/2-1/2

$- \frac{1}{2} - \frac{1}{2}$

Combine the numerators over the common denominator.

$\frac{- 1 - 1}{2}$

Simplify the expression.

Subtract $1$ from $- 1$ .

$\frac{- 2}{2}$

Divide $- 2$ by $2$ .

$- 1$