Answer
The simplified form of the given expression = $\frac{3 - x}{3}, x \ne 0$
Work Step by Step
$\frac{\frac{1}{x} -\frac{1}{3}}{\frac{1}{x}}$
= $\frac{\frac{3 - x}{3x} }{\frac{1}{x}}$
= $\frac{3 - x}{3x}\times$$x$
= $\frac{3 - x}{3}$
The simplified form of the given expression = $\frac{3 - x}{3}, x \ne 0$
