Question

2 задание расписать до 12 часов

Answer 1

$1) 8 \frac{1}{7}a * \frac{3}{8} * 2 \frac {2}{3} =8 \frac{1}{7}a * \frac{3}{8} * \frac{8}{3} = 8 \frac{1}{7}a$

$2) 12 \frac{3}{4}b * 3 \frac{1}{3} * 1 \frac{1}{5} = \frac {51}{4}b * \frac{10}{3} * \frac{6}{5} =\frac{17}{2} b * \frac{5}{1} * \frac{6}{5} = \frac{17}{2} b * \frac{6}{1} = \frac{51b}{1} = 51b$