Respuesta:
280
Explicación paso a paso:
hallamos para luego sumar
[tex]280( \frac{2}{4} ) = \frac{280(2)}{4} = \frac{560}{4} = \boxed{140}[/tex]
[tex]280( \frac{1}{2} ) = \frac{280(1)}{2} = \frac{280}{2} = \boxed{140}[/tex]
sumamos
[tex] \boxed{140} + \boxed{140} = 280[/tex]
