The rational expression is $\"\"$ .

The rational expression can be written as $\"\"$ .

Degree of the numerator $\"\"$ and degree of the denominator is $\"\"$ .

Since the degree of the numerator is greater than the degree of the denominator, the fraction is improper fraction.

The rational expression is improper.

Apply long division method :

$\"\"$

The proper rational expression is $\"\"$ .

The rational expression $\"\"$ is an improper fraction.

The fraction in sum of polynomials is $\"\"$ .