Answer
$\dfrac{3}{5x}$
Work Step by Step
By factoring both the denominator and numerator of each rational function and cancelling the common factors, we have
$$
\frac{6x-27}{5x}\frac{2}{4x-18}=\frac{3(2x-9)}{5x}\frac{2}{2(2x-9)}=\frac{3}{5x}
.$$