Question

Guys what is answer of a and b​

Answer 1

$\huge\mathcal\red{Answer}$

A)

$\frac{ - 7}{8} + \frac{8}{9} \\ = - \frac{7}{8} + \frac{8}{9} \\ lcm \: = 72 \\ - \frac{7}{8} \times \frac{9}{9} = \frac{8}{9} \times \frac{8}{8} \\ = - \frac{63}{72} + \frac{64}{72} \\ \frac{ - 63 + 64}{72} \\ \frac{1}{72}$

B)

$\frac{ - 5}{3} + \frac{ - 3}{5} \\ = - \frac{5}{3} - \frac{3}{5} \\ lcm \: = 15 \\ \frac{ - 25}{15} - \frac{9}{15} \\ \frac{ - 25 - 9}{15} \\ - \frac{34}{15}$