Question

ayuden porfa...
$( \frac{1}{2} + ( \frac{5}{7} - 2)) - (( \frac{5}{7} - \frac{3}{4}) - 2)$
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Answer 1

Respuesta:

5/4

Explicación paso a paso:

$(\frac{1}{2}+(\frac{5}{7}-2))-((\frac{5}{7}-\frac{3}{4})-2)\\(\frac{1}{2}+\frac{-9}{7})-(\frac{-1}{28}-2)\\(\frac{7-18}{14})-(\frac{-1-56}{28})\\\frac{-11}{14}-(\frac{-57}{28})\\\frac{2}{2}.(\frac{-11}{14})+\frac{57}{28}\\\frac{-22}{28} +\frac{57}{28}\\\frac{57-22}{28}=\frac{35}{28}=\frac{5}{4}$