Respuestas

2013-04-28T23:44:20+02:00

(4/5 - 2/3) / (7/15) - 3/2 =-(17/14)

7/3 ( 1/2 + 1/4) + 1/2 - 5 =-11/4

5 ( 2/4 + 1/3) : (-2) =-25/12

( 1/3 - 5/3 - 1/4) (-3)=19/4

 

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