Question

пожалуйста помогите ​

Answer 1

$1)\frac{9}{10} \\\\2)\frac{9}{19}$

Answer 2

$\frac{32}{30} + \frac{3}{30} - \frac{8}{30} = \frac{27}{30}$

$\frac{18}{19} - ( \frac{6}{19} + \frac{3}{19} ) = \frac{9}{19}$