This problem concerns the appropriate use of a slash to denote division, more than a typical identity (which is independent of notational issues like using a fraction bar instead of a slash).

Enter "=" if the proposed identity holds, and "N" otherwise.

$1/x$ $\frac{1}{x}$.

$1/3x$ $\frac{1}{3x}$.

$1/3x$ $\frac{x}{3}$.