$2\ \div\ \frac{1}{2}=w$  
w = ?

Type number only.

(a)  

 $\frac{1}{2}\div3=\frac{d}{6}$  

d = ?

Type a number only.

(a)  

 $\frac{1}{4}\div5=\frac{1}{y}$  
y = ?

Type number only.

(a)  

 $\frac{1}{9}\div2=\frac{1}{z}$  

z = ?

Type number only.

(a)