Simplify -1/2+(-1/5)

$- \frac{1}{2} + (- \frac{1}{5})$

Remove parentheses.

$- \frac{1}{2} - \frac{1}{5}$

To write $- \frac{1}{2}$ as a fraction with a common denominator, multiply by $\frac{5}{5}$ .

$- \frac{1}{2} \cdot \frac{5}{5} - \frac{1}{5}$

To write $- \frac{1}{5}$ as a fraction with a common denominator, multiply by $\frac{2}{2}$ .

$- \frac{1}{2} \cdot \frac{5}{5} - \frac{1}{5} \cdot \frac{2}{2}$

Write each expression with a common denominator of $10$ , by multiplying each by an appropriate factor of $1$ .

Multiply $\frac{1}{2}$ by $\frac{5}{5}$ .

$- \frac{5}{2 \cdot 5} - \frac{1}{5} \cdot \frac{2}{2}$

Multiply $2$ by $5$ .

$- \frac{5}{10} - \frac{1}{5} \cdot \frac{2}{2}$

Multiply $\frac{1}{5}$ by $\frac{2}{2}$ .

$- \frac{5}{10} - \frac{2}{5 \cdot 2}$

Multiply $5$ by $2$ .

$- \frac{5}{10} - \frac{2}{10}$

Combine the numerators over the common denominator.

$\frac{- 5 - 2}{10}$

Subtract $2$ from $- 5$ .

$\frac{- 7}{10}$

Move the negative in front of the fraction.

$- \frac{7}{10}$

The result can be shown in multiple forms.

Exact Form:

$- \frac{7}{10}$

Decimal Form:

$- 0.7$