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}$