Question

Пж помогите и расписать

Answer 1

$4\frac{1}{6}*2\frac{2}{5}=\frac{25}{6}*\frac{12}{5}=\frac{25*12}{6*5}=\frac{5*2}{1}=\boxed{10}$

$2\frac{1}{10}*2\frac{1}{7}=\frac{21}{10}*\frac{15}{7}=\frac{21*15}{10*7}=\frac{3*3}{2*1}=\frac{9}2=\boxed{4,5}$

$1\frac{7}{8}*2\frac{2}{5}=\frac{15}{8}*\frac{12}{5}=\frac{15*12}{8*5}=\frac{3*3}{2*1}=\frac{9}{2}=\boxed{4,5}$

Answer 2

Ответ:

Пошаговое объяснение:

4. 1/6 * 2. 2/5 = 25/6 * 12/5 = 5/1 * 2/1 = 10/1 = 10

2. 1/10 * 2. 1/7 = 21/10 * 15/7 = 3/2 * 3/1 = 9/2 = 4. 1/2

1. 7/8 * 2. 2/5 = 15/8 * 12/5 = 3/2 * 3/1 = 9/2 = 4. 1/2