Question

Помогите решить главное с ОБЪЯСНЕНИЕМ

Answer 1

Пошаговое объяснение:

$1\frac{5}{17} * (7-2\frac{4}{11} ) =$$5\frac{11}{17}$

$1) 7 - 2\frac{4}{11} =\frac{7}{1} - 2\frac{4}{11} = \frac{7}{1} -\frac{2*11+4}{11} =\frac{7}{1} -\frac{26}{11} =\frac{11*7}{11*1} -\frac{1*26}{1*11} =\frac{77}{11} - \frac{26}{11} =\frac{77-26}{11} = \frac{51}{11} =4\frac{7}{11}$

2) $1\frac{5}{17} * 4\frac{4}{11} = \frac{1*17+5}{17} *\frac{4*11+4}{11} =\frac{22}{17} *\frac{48}{11} =\frac{22*48}{17*11} =\frac{1056}{187} =\frac{96*11}{17*11} =\frac{96}{17}=5\frac{11}{17}$