Find the quotient:

(A) $\frac{2}{3} \div \frac{3}{10}$

(B) $\frac{7}{11} \div \frac{5}{8}$

(C) $-\frac{4}{7} \div \frac{5}{14} \text{ [Page No. 49]}$

$$\text{(A) }\left(\frac{2}{3}\right)\div\left(\frac{3}{10}\right):\frac{2}{3}\times\frac{10}{3}=\frac{20}{9}$$

$$(B)\left(\frac{7}{11}\right)\div\left(\frac{5}{8}\right):\frac{7}{11}\times\frac{8}{5}=\frac{56}{55}$$

$$(C)\left(\frac{-4}{7}\right)\div\left(\frac{5}{14}\right):\frac{-4}{7}\times\frac{14}{5}=\frac{-56}{35}=\frac{-8}{5}$$