Question

помогите по матешу...​

Answer 1

4/5÷2 2/3-3:3/4 / 1/6 - 1/15 = 4/5×3/8-4 / 1/10 = 1/5×3/2-4 / 1/10 = 3/10-4 / 1/10 =

-37/10 / 1/10 = -37/1 = -37.

Answer 2

Пошаговое объяснение:

$\frac{ \frac{4}{5} \div 2 \frac{2}{3} - 3 \div \frac{3}{4} }{ \frac{1}{6} - \frac{1}{15} } =\frac{\frac{4\times 3}{5\left(2\times 3+2\right)}-\frac{3}{\frac{3}{4}}}{\frac{1}{6}-\frac{1}{15}} =\frac{\frac{12}{5\left(2\times 3+2\right)}-\frac{3}{\frac{3}{4}}}{\frac{1}{6}-\frac{1}{15}} =\frac{\frac{12}{5\left(6+2\right)}-\frac{3}{\frac{3}{4}}}{\frac{1}{6}-\frac{1}{15}} =\frac{\frac{12}{5\times 8}-\frac{3}{\frac{3}{4}}}{\frac{1}{6}-\frac{1}{15}} =\frac{\frac{12}{40}-\frac{3}{\frac{3}{4}}}{\frac{1}{6}-\frac{1}{15}} =\frac{\frac{3}{10}-\frac{3}{\frac{3}{4}}}{\frac{1}{6}-\frac{1}{15}} =\frac{\frac{3}{10}-3\times \left(\frac{4}{3}\right)}{\frac{1}{6}-\frac{1}{15}} =\frac{\frac{3}{10}-4}{\frac{1}{6}-\frac{1}{15}} =\frac{\frac{3}{10}-\frac{40}{10}}{\frac{1}{6}-\frac{1}{15}} =\frac{\frac{3-40}{10}}{\frac{1}{6}-\frac{1}{15}} =\frac{-\frac{37}{10}}{\frac{1}{6}-\frac{1}{15}} =\frac{-\frac{37}{10}}{\frac{5}{30}-\frac{2}{30}} =\frac{-\frac{37}{10}}{\frac{5-2}{30}} =\frac{-\frac{37}{10}}{\frac{3}{30}} =\frac{-\frac{37}{10}}{\frac{1}{10}} =-\frac{37}{10}\times 10 =-37$