Simplify a/(a-b)-b/(a-b)

$\frac{a}{a - b} - \frac{b}{a - b}$

Step 1

Combine the numerators over the common denominator.

$\frac{a - b}{a - b}$

Step 2

Cancel the common factor of $a - b$ .

Cancel the common factor.

$\frac{a - b}{a - b}$

Rewrite the expression.

$1$