Question

please solve this math

Answer 1

$\frac{8}{9} \times ( \frac{1}{7} - \frac{2}{9} ) + \frac{13}{21} \times \frac{7}{ - 260} \\ = \frac{8}{9} \times ( \frac{9 - 14}{63} ) + \frac{1}{ - 60} \\ = \frac{8}{9} \times \frac{ - 5}{63} - \frac{1}{60} \\ = - \frac{ 40}{567} - \frac{1}{60} \\ = - \frac{2400 - 1}{567 \times 60} = - \frac{2399}{34020} (ans)$
Hope this is ur required answer.