Question

Срочно!!! Докину доп баллы!!!!!!

Answer 1

$a) \frac{19}{7} + \frac{12}{7} = \frac{31}{7} = 4 \frac{4}{7} \\ \\ b)9 - 1 \frac{6}{7} = 7 \frac{1}{7 } \\ \\ c) \frac{23}{3} \times \frac{5}{2} = \frac{115}{6} = 19 \frac{1}{6}$

$d) \frac{21}{2} \times \frac{6}{11} = \frac{63}{11} = 5 \frac{8}{11}$