Respuestas

2012-11-10T21:57:10+01:00

 (1/2)1 - 0,3 - 0,3.(4-1/3) + (5/4)-2 : (7/5)

1/2 - 3/10 - 3/10(4-1/3) + 5/4 - 2x(5/7)

2/10- 3/10(11/3) +5/4 -10/7

2/10 - 11/10 - 5/28

-9/10 - 5/28 = -151/140


 -0,2 + (8/5+7/2) . (-2) – (-7/4)

-2/10 + (51/10)(-2) + 7/4

-2/10 + 51/5 + 7/4 =47/4