To simplify the expression \( \frac{5^{-9}}{46^{-12}} \) using the property of negative integer exponents, we apply the rule that states \( a^{-n} = \frac{1}{a^n} \).
Here's how we can apply this property to the expression:
- Rewrite the expression using the property of negative exponents:
\[ \frac{5^{-9}}{46^{-12}} = 5^{-9} \cdot 46^{12} \]
- Now, we can rewrite \( 5^{-9} \) as \( \frac{1}{5^9} \):
\[ = \frac{46^{12}}{5^9} \]
This expression has only positive exponents:
\[ \frac{46^{12}}{5^9} \]
Thus, the final expression equivalent to \( \frac{5^{-9}}{46^{-12}} \) with positive exponents is:
\[ \frac{46^{12}}{5^9} \]