Respostas

2014-04-11T10:49:14-03:00
{ \frac{3}{0,7} -[ \frac{-1}{3}  \frac{-2}{6} ÷0,4] \frac{-5}{9} }+2
{ \frac{3}{0,7} + \frac{2,8}{6}  \frac{-5}{9} -1}+2
{ \frac{54+58,8-7-12,6}{2,6} }+2
 \frac{93,2}{2,6} +2= \frac{93,2+5,2}{2,6} = \frac{98,4}{2,6}
Ou simplificando  \frac{49,2}{1,3}