Question

8/3(-3/4)-{2-[3/4-1+2/5(-10+15/4)-1]}

Answer 1

$\frac{8}{3}( -\frac{3}{4} ) -[2-[ \frac{3}{4}-1+ \frac{2}{5}(-10+ \frac{15}{4} )-1]] \\ \\ -\frac{24}{12}-[2-[ \frac{3}{4} -2 +\frac{2}{5}( \frac{-25}{4}) ]] \\ \\ -2-[2-[- \frac{5}{4}- \frac{50}{20} ]] \\ \\ -2-[2+ \frac{300}{80}] \\ \\ -2-[ \frac{460}{80}] \\ \\ -2- \frac{460}{80} = \frac{-160-460}{80}= -\frac{620}{80} Simplifica,por,vigesima,parte,(20) \\ \\ Resultado,final=\boxed{ -\frac{31}{4}}$

Decimal : -7,75

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