help me. and no bs, and answer as a fraction pls and if you use a calculator the answer will be incorrect. ive tried. i really need help

Answer:
[tex]5^{-3}x^{-11}y^{6}z^{-11}[/tex]
Step-by-step explanation:
This is the simplified version of the equation. You subtract the bottom exponents from the top based on exponential rules.