Respostas

2013-03-29T14:39:43-03:00

7/6- [3/2-(1-1/3) + (1-3/4)]=

7/6- [ 3/2 - (2/3) + (1/4)]=

7/6- [18-8+3/12]=

7/6-[10+3/12]=

7/6-13/12= 

14-13/12=1/12

 

Bem acho que é isso.

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