Respuestas

2012-09-12T05:50:54+02:00

2/3-1/2(1//5-3)+2(2/4-1/5+2/3)

=2/3-1/2(-14/5)+2(1/2-1/5+2/3)

=2/3-7/5+2(29/30)

=2/3-7/5+29/15

=(10-21+29)/15

=18/15

=6/5