Wed Dec 11... Adding and Subtracting Rational Expressions

Define rational expressions.

What is the first step in adding rational expressions with the same denominator?

Simplify the expression: $$\frac{6x}{20xy}$$

What is the least common denominator (LCD) for the expressions $$\frac{5n}{30m}$$ and $$\frac{2m+4n}{30m}$$ ?

How do you add the rational expressions $$\frac{3x}{y} + \frac{15x}{y}$$ ?

What is the result of subtracting $$\frac{x-8}{9x^3+27x^2}$$ from $$\frac{5x+4}{9x^3+27x^2}$$ ?

What is the process for simplifying the expression $$\frac{5x+4}{9x^3+27x^2} - \frac{x-8}{9x^3+27x^2}$$ ?

Add the rational expressions $$\frac{3x+2y}{3z} + \frac{15x+12y}{3z}$$ .

What is a polynomial?

Explain how to find the common denominator for two rational expressions.