Question

!!!! СРОЧНОЬЬЬЬЬЬЬЬЬЬ​

Answer 1

Ответ:

$\frac{(1\frac{3}{4}*\frac{2}{5} +1\frac{3}{4})*1\frac{7}{5} }{(\frac{17}{40} - \frac{13}{40} ):\frac{1}{5}*\frac{2}{5} } = \frac{(\frac{7}{4}*\frac{2}{5} +\frac{7}{4})*\frac{12}{5} }{\frac{4}{40}*\frac{5}{1}*\frac{2}{5} } = \frac{\frac{49}{20}*\frac{12}{5} }{\frac{1}{2}*\frac{2}{5} } = \frac{\frac{49*3}{25}}{\frac{1}{5}} = \frac{147*5}{25} = \frac{147}{5} = 29\frac{2}{5}$

Объяснение: