Respuestas

2013-10-07T19:09:39+02:00

-3/5(3/4 - 2/8) + (0,75 - 3/2) ÷ (3/5)
= (- 3/5).(3/4) + (3/5)(2/8) + (3/4):3/5 - (3/2):3/5
= - 9/20 + 3/20 + (3/4).(5/3) - (3/2)(5/3)
= - 6/20 + 5/4 + 5/5 - 5/2
= (- 6 + 25 + 20 - 50)/20            20 = mcm(20,4,5,2)
= - 11/20   RESULTADO FINAL