Answer:
[tex]\frac{1}{25}[/tex]
Step-by-step explanation:
note that (5x)³ = 5³x³ = 125x³
Hence
[tex]\frac{5x^3}{125x^3}[/tex]
Cancel the x³ on numerator/denominator and divide the 5 and 125 by 5
= [tex]\frac{1}{25}[/tex] ← in simplified form