Respuestas

2013-04-10T05:12:39+02:00

2/3-[-(1+2)/2-(9-5-6)/12-2]-1/4-{-1+[2/-3(-39-28)/12]}

2/3-16/12-1/4-{-1-67/6}

2/3-16/12-1/4-{-73/6}

2/3-16/12-1/4+73/6

(8-16-3+146)/12

135/12

45/4