Question

( -9 / 10 ) - 11 / 15 = ?

Answer 1

- 9 / 10 - 11 / 15

= -27 / 30 - 22 / 30

= - 49 / 30 Ans.

Answer 2

$- \frac{ 9}{10} - \frac{11}{15 } \\ - \frac{ 1}{5} ( \frac{9}{2} + \frac{11}{3} ) \\ = - \frac{1}{5} ( \frac{49}{6} ) \\ = - \frac{49}{30}$
hope it helps