$\frac{4}{5}\ =\ \frac{ }{20}$  

(a)  

 $\frac{ }{3}\ =\ \frac{10}{6}$  

(a)  

 $\frac{ }{7}\ =\ \frac{8}{28}$  

(a)  

 $\frac{7}{9}\ =\ \frac{14}{ }$  

(a)  

 $\frac{5}{10}\ =\ \frac{15}{ }$  

(a)  

 $\frac{4}{8}\ =\ \frac{24}{ }$  

(a)  

 $\frac{1}{3}\ =\ \frac{ }{9}$  

(a)  

 $\frac{4}{12}\ =\ \frac{ }{3}$  

(a)  

 $\frac{16}{20}\ =\ \frac{ }{10}$  

(a)  

 $\frac{7}{9}\ =\ \frac{ }{27}$  

(a)  

 $\frac{2}{10}\ =\ \frac{ }{5}$  

(a)  

 $\frac{5}{7}\ =\ \frac{20}{ }$  

(a)  

 $\frac{3}{12}\ =\ \frac{9}{ }$  

(a)  

 $\frac{2}{15}\ =\ \frac{ }{45}$  

(a)  

 $\frac{4}{7}\ =\ \frac{8}{ }$  

(a)  

 $\frac{5}{ }\ =\ \frac{25}{45}$  

(a)  

 $\frac{6}{ }\ =\ \frac{18}{24}$  

(a)  

 $\frac{2}{5}\ =\ \frac{10}{ }$  

(a)  

 $\frac{4}{3}\ =\ \frac{40}{ }$  

(a)