To express \( 6^{-5} \) as a fraction with a positive exponent, we can use the property of exponents that states \( a^{-n} = \frac{1}{a^n} \).
Thus, we can rewrite \( 6^{-5} \) as:
\[ 6^{-5} = \frac{1}{6^5} \]
So the expression \( 6^{-5} \) as a fraction with a positive exponent is \( \frac{1}{6^5} \).