Answer
$\frac{2x}{5}$
Work Step by Step
To write the fraction in its simplest form, find the greatest common factor of the numerator and denominator.
$ \frac{54x}{135}= \frac{27 (2x)}{27 (5)}$
Cancel out the greatest common factor
$ \frac{27 (2x)}{27 (5)}= \frac{2x}{5}$