Question

How To solve it please help​

Answer 1

Answer:

both the answers are zero

Step-by-step explanation:

(a)

$\frac{-2}{3} *\frac{1}{5} +\frac{2}{3}* \frac{1}{5} \\\\\frac{2}{3} ( \frac{-1}{5} + \frac{1}{5} )\\\\ \frac{2}{2} * 0\\\\0$

(b)

$\frac{3}{7} *\frac{-2}{5} +\frac{2}{5}* \frac{1}{3}*\frac{9}{7} \\\\\frac{2}{5} ( \frac{-3}{7} + \frac{1}{3}*\frac{9}{7} )\\\\\frac{2}{5}(\frac{-3}{7}+ \frac{3}{7}) \\\\\frac{2}{5} * 0\\\\0$