Simplify (x+4)/5+(x+5)/5

$\frac{x + 4}{5} + \frac{x + 5}{5}$

Combine the numerators over the common denominator.

$\frac{x + 4 + x + 5}{5}$

Add $x$ and $x$ .

$\frac{2 x + 4 + 5}{5}$

Add $4$ and $5$ .

$\frac{2 x + 9}{5}$