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\frac{y\left(y-1\right)}{x\left(y-1\right)}+\frac{xy^{2}}{x^{2}y}-\frac{xy+2y}{x^{2}+2x}
Factor the expressions that are not already factored in \frac{y^{2}-y}{xy-x}.
\frac{y}{x}+\frac{xy^{2}}{x^{2}y}-\frac{xy+2y}{x^{2}+2x}
Cancel out y-1 in both numerator and denominator.
\frac{y}{x}+\frac{y}{x}-\frac{xy+2y}{x^{2}+2x}
Cancel out xy in both numerator and denominator.
2\times \frac{y}{x}-\frac{xy+2y}{x^{2}+2x}
Combine \frac{y}{x} and \frac{y}{x} to get 2\times \frac{y}{x}.
2\times \frac{y}{x}-\frac{y\left(x+2\right)}{x\left(x+2\right)}
Factor the expressions that are not already factored in \frac{xy+2y}{x^{2}+2x}.
2\times \frac{y}{x}-\frac{y}{x}
Cancel out x+2 in both numerator and denominator.
\frac{2y}{x}-\frac{y}{x}
Express 2\times \frac{y}{x} as a single fraction.
\frac{2y-y}{x}
Since \frac{2y}{x} and \frac{y}{x} have the same denominator, subtract them by subtracting their numerators.
\frac{y}{x}
Combine like terms in 2y-y.
\frac{y\left(y-1\right)}{x\left(y-1\right)}+\frac{xy^{2}}{x^{2}y}-\frac{xy+2y}{x^{2}+2x}
Factor the expressions that are not already factored in \frac{y^{2}-y}{xy-x}.
\frac{y}{x}+\frac{xy^{2}}{x^{2}y}-\frac{xy+2y}{x^{2}+2x}
Cancel out y-1 in both numerator and denominator.
\frac{y}{x}+\frac{y}{x}-\frac{xy+2y}{x^{2}+2x}
Cancel out xy in both numerator and denominator.
2\times \frac{y}{x}-\frac{xy+2y}{x^{2}+2x}
Combine \frac{y}{x} and \frac{y}{x} to get 2\times \frac{y}{x}.
2\times \frac{y}{x}-\frac{y\left(x+2\right)}{x\left(x+2\right)}
Factor the expressions that are not already factored in \frac{xy+2y}{x^{2}+2x}.
2\times \frac{y}{x}-\frac{y}{x}
Cancel out x+2 in both numerator and denominator.
\frac{2y}{x}-\frac{y}{x}
Express 2\times \frac{y}{x} as a single fraction.
\frac{2y-y}{x}
Since \frac{2y}{x} and \frac{y}{x} have the same denominator, subtract them by subtracting their numerators.
\frac{y}{x}
Combine like terms in 2y-y.