$$\frac{-1+3}{5}+\frac{-4}{5}$$
Add $-1$ and $3$ to get $2$.$$\frac{2}{5}+\frac{-4}{5}$$
Fraction $\frac{-4}{5}$ can be rewritten as $-\frac{4}{5}$ by extracting the negative sign.$$\frac{2}{5}-\frac{4}{5}$$
Since $\frac{2}{5}$ and $\frac{4}{5}$ have the same denominator, subtract them by subtracting their numerators.$$\frac{2-4}{5}$$
Subtract $4$ from $2$ to get $-2$.$$-\frac{2}{5}$$