Answer
$\frac{x}{y}$.
Work Step by Step
The given expression is
$=\frac{x^{2}y^{3}}{xy^4}$
Or we can write.
$=\frac{x^{2}}{x^1}\cdot \frac{y^{3}}{y^4}$
Use the law of exponents $\frac{a^{m}}{a^n}=a^{m-n}$
$=(x^{2-1})\cdot (y^{3-4})$
Simplify.
$=(x^{1})\cdot (y^{-1})$
Use the law of exponents $(a)^{-n}=\frac{1}{a^{n}}$
$=x\cdot \frac{1}{y}$
$=\frac{x}{y}$.