Question

Помогите плз , просто не успеваю

Answer 1

2 1/7= 15/7
15/7 * 3 + 15/7 * 6/5 = (15*3)/7 + (15*6)/(7*5)= 45/7 + 18/7 = 63/7 = 9

Answer 2

$2 frac{1}{7} * (3+ frac{6}{5})$
1) 3 + $frac{6}{5}=4 frac{1}{5}$
2) $2 frac{1}{7}*4 frac{1}{5} = frac{15}{7} * frac{21}{5} = frac{3}{1}* frac{3}{1}= frac{9}{1}=9$
Ответ: 9