Respuestas

2013-05-05T00:56:16+02:00

Resuelva cada parentesis:

-   ( 2/3 + 1/4) =  11/12 

-  ( 3/4 -1/5 ) =11/20

 

Luego resuelves :  (11/12)  / (11/20)=   220/132 =  5/3

2013-05-05T00:56:44+02:00

(2/3+1/4)/(3/4-1/5)=5/3

11/12*11/20=5/3

121/240=5/3