# Evaluate: (a-b)/(a)-(b-a)/(b)

## Expression: $\frac{ a-b }{ a }-\frac{ b-a }{ b }$

To find the excluded values, set the denominators equal to $0$

$\begin{array} { l }a=0,\\b=0\end{array}$

The excluded values of the initial expression are $\begin{array} { l }a=0,& b=0\end{array}$

$\begin{array} { l }a=0,& b=0\end{array}$

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