It looks like you provided the expression "8k16," which isn't clear in its current format. If you meant to simplify a rational expression like \(\frac{8k}{16}\), then we can simplify that:
\[ \frac{8k}{16} = \frac{8}{16} \cdot k = \frac{1}{2}k \]
So, the simplified form is \(\frac{1}{2}k\).
If this was not what you intended, please clarify the expression you would like to simplify!