Respuestas

2012-04-10T06:13:42+02:00

                                                                                   

  • Usuario de Brainly
2012-04-10T06:17:13+02:00

12+1/2-{5-[1/4+(3-1/8)+1/5]+1/2}

12+1/2-{5-[1/4+(23/8)+1/5]+1/2}

12+1/2-{5-153 / 40}

12  - 27 / 40

433 / 40