Perform the indicated operation to evaluate each expression. 

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

2. $-\frac{2}{3}-2$ 

3. $-1\frac{2}{3}\left(-2\right)$ 

   Hint (c):

   Try changing the mixed number to a fraction greater than 1.

   More Help (c):

   ${-1\frac{2}{3}(-2)}$
   ${\frac{-5}{3}\cdot \frac{-2}{1}}$

4. $-2\ \div \frac{2}{3}$ 

   Hint (d):

   Dividing by a fraction is the same as multiplying by the reciprocal of the fraction.

   Answer (d):

   $−3$