Respuestas

2013-10-01T05:55:22+02:00
Claro amigo aqui esta:
1) -1/2 + 3/4
    -1/2 + 3/4 = (-2 + 3)/4 = 1/4
2) 5/6 - 4/3
   5/6 - 4/3 = (5 - 8)/6 = - 3/6 = - 1/2
3) 5/3 * -6/4
    5/3 * -6/4 = - 30/12 = - 15/6