Question

Даю 20 баллов за ответ

Answer 1

Ответ:

$\frac{123}{226} \:$

$\frac{10.1 - (4 \frac{ 2 }{5} - 2 \frac{1}{2}) }{4 + (3.2 + 2 \frac{1}{3}) \times 2 } = \frac{123}{226} \: \\ \\ 1) \: 4 \frac{ 2 }{5} - 2 \frac{1}{2} = 2 \frac{4 - 5}{10} = 2 - \frac{1}{10} = 1 \frac{10 - 1}{10} = 1 \frac{9}{10} = 1.9 \\ 2) \: 10.1 - 1.9 = 10 \frac{1}{10} - 1 \frac{9}{10} = 9 \frac{1 - 9}{10} = 9 - \frac{8}{10} = 8 \frac{2}{10} = 8.2 \\ 3) \: 3.2 + 2 \frac{1}{3} = 3 \frac{1}{5} + 2 \frac{1}{3} = 5 \frac{3 + 5}{15} = 5 \frac{8}{15} \\ 4) \: 5 \frac{8}{15} \times 2 = 10 \frac{16}{15} = 11 \frac{1}{15} \\ 5) \: 4 + 11 \frac{1}{15} = 15 \frac{1}{15} \\ 6) \: 8 \frac{2}{10} \div 15 \frac{1}{15} = 8 \frac{1}{5} \times \frac{15}{226} = \frac{41 \times 15}{5 \times 226} = \frac{123}{226}$