Question 464403

Definition:

A rational expression is the {{{quotient}}} of {{{two}}}{{{ polynomials}}}. 

or

A rational expression is nothing more than a fraction in which the numerator and/or the denominator are polynomials.  

Examples:


 1.
 {{{( x - 1) /(x + 2)}}}



   2.
{{{( x + 1) /((x + 2)(x - 3))}}}
      


3.
{{{1 /(x^2 + 1)}}}