# How do you simplify (20x^2y)/(25xy) and find the excluded values?

Mar 3, 2017

$\frac{4 x}{5}$

#### Explanation:

$\frac{20 {x}^{2} y}{25 x y}$

$\frac{4 {x}^{2} y}{5 x y}$-----------Cancel out by 5.

$\frac{4 x y}{5 y}$----------------Cancel out $x$

$\frac{4 x}{5}$-------------------Cancel out $y$

We get simplified form,

$\frac{4 x}{5}$

Here, excluded values are:
x!in0 & y !in0

Because, the denominator becomes zero when $x \mathmr{and} y = 0$.
And 0 in the denominator gives $\infty$. While, $\infty$ is not-defined number.