The reciprocal of $–5$ is $k$, then $-5k=$ .

Reciprocal of $\frac{1}{x}$, where $x\ne 0$ is _____.

The reciprocal of a positive rational number is _____. (positive/negative)

Represent this number on the number line.

$\frac{7}{4}$

Represent the following number on the number line.

$\frac{-5}{6}$