Question

2 5/12-75:(1 5/8-6 9/16) =?
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Answer 1

Ответ:

$2\frac{5}{12} -75:(1\frac{5}{8}-6\frac{9}{16})=\\1)(1\frac{5}{8}-6\frac{9}{16})=\frac{13*2-105}{16} = -\frac{79}{16} \\2)75:(-\frac{79}{16})=75*(-\frac{16}{79}) =(-\frac{1200}{79}) \\3)2\frac{5}{12}-(-\frac{1200}{79})=\frac{(2*12+5)*79+1200}{79}= \frac{3491}{79}= 44\frac{15}{79}$

Пошаговое объяснение: