Algebra-1

Question Analysis
This question tests the student's ability to simplify an expression involving negative exponents with variables.

Key Concept Explanation
The key concept here is that a negative exponent indicates the reciprocal of the base raised to the positive exponent. Additionally, when dividing powers with the same base, we subtract the exponents.

Step-by-step Solution
1. Apply the rule for negative exponents:
2. Simplify the fraction:

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