Evaluate 1/2-(-8)

$\frac{1}{2} - (- 8)$

Multiply $- 1$ by $- 8$ .

$\frac{1}{2} + 8$

To write $8$ as a fraction with a common denominator, multiply by $\frac{2}{2}$ .

$\frac{1}{2} + 8 \cdot \frac{2}{2}$

Combine $8$ and $\frac{2}{2}$ .

$\frac{1}{2} + \frac{8 \cdot 2}{2}$

Combine the numerators over the common denominator.

$\frac{1 + 8 \cdot 2}{2}$

Simplify the numerator.

Multiply $8$ by $2$ .

$\frac{1 + 16}{2}$

Add $1$ and $16$ .

$\frac{17}{2}$

The result can be shown in multiple forms.

Exact Form:

$\frac{17}{2}$

Decimal Form:

$8.5$

Mixed Number Form:

$8 \frac{1}{2}$