Question

Решение и ответ.
Помогите пж.

Answer 1

(7/15+7/30+4/5):(2-1/3-1/2)= (14/30+7/30+24/30):(12/6-2/6-3/6)= 45/30:7/6= 9/6:7/6= 9/6*6/7= 9/7= 1 2/7

Answer 2

$(\frac{7}{15} + \frac{7}{30} + \frac{4}{5}) : (2-\frac{1}{3} - \frac{1}{2} )= (\frac{14}{30} + \frac{7}{30} + \frac{24}{30}) : ( \frac{12}{6} -\frac{2}{6} - \frac{3}{6} )= \frac{45}{30}: \frac{7}{6} =$$\frac{45}{30}* \frac{6}{7} = \frac{45}{5} * \frac{1}{7}= 9*\frac{1}{7}= \frac{9}{7} =1 \frac{2}{7}$