Respuestas

  • Usuario de Brainly
2013-05-11T07:03:02+02:00

2/3+[1/4-(3/4-1/6)]

2/3 + [1/4-(18/24 - 4/24)]

2/3 + [1/4-14/24]

2/3 + [1/4- 7/12]

2/3 + [3/12- 7/12]

2/3 -4/12

8/12 - 4/12 = 4/12 = 1/3

 

 

1-4/5:2/15+3/8.(2/9)-11/12

1 - 6 + 1/12 - 11/12

12/12 - 72/12 + 1/12 - 11/12  - 70/12 = - 35/6   espero que te sirva, salu2!!!!