Respuesta :

1/2 + (-3/4)

= 1/2 - 3/4

= 2/4 - 3/4

= -1/4
antonio9990
[tex] \frac{1}{2} + (-\frac{3}{4}) = \\ \\ \frac{1^{(2}}{2}- \frac{3}{4} = \\ \\ \frac{2}{4}- \frac{3}{4} = \underline{\boxed{\frac{-1}{4}} }[/tex]