Compare and contrast division of integers to division of rational expressions.

Integers may be positive or negative. They are whole numbers. 
Rational expression is a fraction wherein a numerator and/or a denominator are polynomials.

Division of integers is like dividing whole numbers. You only have to take not of the positive or negative sign of each integer to determine the sign of the quotient.

Division of rational expression:
1) flip and multiply
2) factor the numerator and denominator
3) cancel duplicate factors and simplify.