Question

(6-2 4/5)×3 1/8 -1 3/5 : 1/4 срочнооо​

Answer 1

Ответ:

$(6 - 2 \frac{4}{5} ) \times 3 \frac{1}{8} - 1 \frac{3}{5} \div \frac{1}{4} \\ 3 \frac{1}{5} \times \frac{25}{8} - \frac{8}{5} \div \frac{1}{4} \\ \frac{16}{5} \times \frac{25}{8} - \frac{8}{5} \times \frac{4}{1} \\ \frac{2}{1} \times \frac{5}{2} - \frac{32}{5} \\ \frac{10}{2} - \frac{32}{5} \\ \frac{50}{10} - \frac{64}{10} = - \frac{14}{10} = - 1 \frac{2}{5}$