\(\frac{2x-y}{x+y}=\frac{2}{3}\)
\(\Leftrightarrow\left(2x-y\right).2=\left(x+y\right).3\)
\(\Leftrightarrow2x+2y=6x-3y\)
\(\Leftrightarrow2x-6x=-3y-2y\)
\(\Leftrightarrow-4x=-5y\)
\(\Leftrightarrow\frac{x}{y}=\frac{5}{4}\)
\(\frac{2x-y}{x+y}=\frac{2}{3}\)
\(\Leftrightarrow3\left(2x-y\right)=2\left(x+y\right)\)
\(\Leftrightarrow6x-3y=2x+2y\)
\(\Leftrightarrow6x-2x=2y+3y\)
\(\Leftrightarrow4x=5y\)
\(\Leftrightarrow\frac{x}{y}=\frac{5}{4}\)