Respuesta :
(x + 7)/2 - (x + 4)/2 = (x + 7 - (x + 4)/2 = (x + 7 - x - 4)/2 = 3/2
we know that the expression is equal to
[tex]\frac{x+7}{2}- \frac{x+4}{2}[/tex]
Subtract the two fractions
[tex]\frac{x+7}{2}- \frac{x+4}{2}=\frac{(x+7)-(x+4)}{2} \\\\=\frac{x+7-x-4}{2}\\\\= \frac{7-4}{2}\\\\= \frac{3}{2}[/tex]
therefore
the answer is
the quantity of [tex]3[/tex] over [tex]2[/tex]