Find the product:

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

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

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

$$\text{(A) }\left(\frac{2}{3}\right)\times\left(\frac{3}{10}\right):\frac{6}{30}=\frac{1}{5}$$

$$(B) \left(\frac{7}{11}\right) \times \left(\frac{5}{8}\right): \frac{35}{88}$$

$$(C) \left(\frac{-4}{7}\right) \times \left(\frac{5}{14}\right): \frac{-20}{98} = \frac{-10}{49}$$