To simplify the expression \( a^{67} b^{34} \):
Since there is no operation being applied (like multiplication or division), the expression remains the same; however, we can rewrite it in different forms.
If we're asked to express it as a fraction or combined terms, the expression \( a^{67} b^{34} \) could be presented in various ways, but as is, it is already in its simplest form.
However, if we were to condense \( a^{67} b^{34} \) in one of the options you provided:
- \( \frac{a^{67}}{b^{34}} \)
- \( a^{33} b^{33} \)
- \( ab^{33} \)
None of these options accurately match the original expression directly unless additional context or operations were applied.
If you need each part expressed separately for specific mathematical operations (like factoring or distributing), please clarify that for a different approach.
As it stands, the expression \( a^{67} b^{34} \) is considered simplified.