Answer:
[tex] \frac{1}{125} [/tex]
Step-by-step explanation:
[tex] {5}^{ - 3} \\ \frac{1}{ {5}^{3} } = \frac{1}{5 \times 5 \times 5} \\ [/tex]
[tex] \boxed{Answer:{\boxed{\green{= \frac{1}{125}}}}} [/tex]