Simplify \(\frac{4}{6}\) to \(\frac{2}{3}\).
\[\begin{aligned}&\frac{2}{3}+\frac{8}{4}-\frac{4}{5}\\&-\frac{2}{3}\end{aligned}\]
Simplify \(\frac{8}{4}\) to \(2\).
\[\begin{aligned}&\frac{2}{3}+2-\frac{4}{5}\\&-\frac{2}{3}\end{aligned}\]
2/3+2-4/5;-2/3
