Question

1.1/2*2.2/11+2.3/4*2.2/11-2.2/11*3.5/6

Помогите решить удобным способом​

Answer 1

Ответ:

$2 \frac{2}{11} \times (1 \frac{1}{2} + 2 \frac{3}{4} - 3 \frac{5}{6} ) = \frac{10}{11}$

$1 \frac{1}{2} + 2 \frac{3}{4} - 3 \frac{5}{6} = \\ 1 \frac{6}{12} + 2 \frac{9}{12} - 3 \frac{10}{12} =$

$3 \frac{15}{12} - 3 \frac{10}{12} = \frac{5}{12}$

$2 \frac{2}{11} \times \frac{5}{12} = \frac{24}{11} \times \frac{5}{12} = \frac{10}{11}$