Respostas

2014-03-24T22:01:42-03:00
8/3 {3/7 + [2/5 - (1/4 + 3/4 + 4] + 5/3} = 
8/3 {3/7 + [2/5 - ( \frac{1+3+16}{4} ] + 5/3} =
8/3 {3/7 + [2/5 -  \frac{20}{4} + 5/3} = 
8/3 {3/7 + [2/5 - 5 +5/3] = 
8/3 {3/7 + [ \frac{6-75+25}{15} ] =
8/3 {3/7 + [-44/15] =
8/3 {3/7 - 44/15} = 
8/3 { \frac{45-308}{105} } =
8/3 . {-263/15} = 
 \frac{-2104}{45}