Operations with Fractions

Solve:

 $\frac{7}{8}\ \cdot\ \frac{1}{2}$  
Enter your answer in the form: a / b  

Simplify:

 $-\frac{2}{3}\ \cdot\ \frac{3}{16}$  
Enter your answer in the form: a / b

Simplify:

 $-4\frac{1}{2}\ \cdot\ 1\frac{1}{9}$  

Simplify:

 $\frac{7}{9}\ \div\ \left(-14\right)$  
Enter your answer in the form: a / b

Simplify:

 $-2\frac{1}{5}\ \div\ -3\frac{2}{3}$  
Enter your answer in the form: a / b

Simplify:

 $\frac{4ab}{c}\ \div\ \frac{3a}{2c}$  
Enter your answer in the form: a / b

Add:

 $3\frac{3}{8}\ +\ 6\frac{5}{8}$  

Subtract:

 $\frac{2}{15}\ -\ \frac{7}{15}$  

Completely simplify your answer. Enter your answer in the form: a / b

Evaluate if s =  $\frac{2}{7}$  and t =  $-\frac{3}{7}$  :

s - t


Enter your answer in the form: a / b

Add:

 $-2\ \frac{1}{3}\ +\ \left(-7\ \frac{1}{2}\right)$  
Enter your answer in the form: a b/c