Answer:
[tex]\frac{3}{8} + \frac{3x}{5}[/tex]
Step-by-step explanation:
[tex]\left(\frac{2}{5}x + \frac{5}{8}\right)+\left(\frac{1}{5}x-\frac{1}{4}\right)[/tex] =
[tex]\frac{2}{5}x+ \frac{1}{5}x+ \frac{5}{8}- \frac{1}{4}[/tex] (Group Like Trems) =
[tex]\frac{3}{5}x+\frac{5}{8}-\frac{1}{4}[/tex] =
[tex]\frac{3}{8}+ \frac{3x}{5}[/tex]