Question

find by appropriate properties 2/7×1/5-2/7×-4/5​

Answer 1

Answer:

$\frac{2}{7} \times \frac{1}{5} - \frac{2}{7} \times \frac{ - 4}{5} \\ (\frac{2}{7} \times \frac{1}{5} ) - ( \frac{2}{7} \times \frac{ - 4}{5}) \\ = \frac{2}{35} - \frac{ - 8}{35} \\ = \frac{2 - ( - 8)}{35} \\ = \frac{2 + 8}{35} \\ = \frac{10}{35} \\ \boxed{= \underline{ \underline{ \frac{2}{7} }}}$