Respuestas

2012-09-25T00:27:11+02:00

(2/7 + 5/4) x (3/4 - 6/5) =

 

 

(43/28) x (-9/20)

 

-387/560

2012-09-25T00:28:45+02:00

(2/7 + 5/4) x (3/4 - 6/5) =

(43/28)*(-9/20)

-387/560