bentuk sederhana ×/y - y/× / 2y/× - 2×/y adalah

[tex] \frac{ \frac{x}{y} - \frac{y}{x} }{ \frac{2y}{x} - \frac{2x}{y} }\\ = \frac{ \frac{x^2-y^2}{xy}}{ \frac{2y^2-2x^2}{xy}}\\ = \frac{x^2-y^2}{xy}}.{ \frac{xy}{2y^2-2x^2}} \\ =\frac{x^2-y^2}{2(x^2-y^2)} = \frac{1}{2} [/tex]

atau kalau pakai cara gampangnya

[tex]\frac{ \frac{x}{y} - \frac{y}{x} }{ \frac{2y}{x} - \frac{2x}{y} }=\frac{ \frac{x}{y} - \frac{y}{x} }{2( \frac{y}{x} - \frac{x}{y}) } = \frac{1}{2} \\ [/tex]