For each expression below:  

• Sketch and label a pair of similar shapes (like those at right or in problem 4-94) that would result in each calculation.

• Rewrite the expression so that the operation is multiplication.

• Calculate the value of the expression.

1. $6\div\frac{1}{2}$ 

   Hint (a):

   Remember. when you divide by a fraction you can also multiply by its reciprocal.

   Step 1 (a):

   $6·2=?$

   Step 2 (a):

   $12$

2. $4\div\frac{2}{3}$ 

   Help (b):

   $4\left(\frac{3}{2}\right)=?$