Question

-1 (1by3) (2by5+7by15)​

Answer 1

Step-by-step explanation:

$\\ - 1 \left( \frac{1}{3} \right) \left( \frac{2}{5} + \frac{7}{15} \right)$

$\\ \rm\implies - \frac{1}{3} \left( \frac{30 + 35}{15 \times 5} \right )$

$\\ \rm\implies - \frac{1}{3} \times \frac{65}{75}$

$\\ \rm\implies - \frac{1}{3} \times \frac{13}{15}$

$\boxed{\orange {\rm\implies - \frac{13}{45} }}$