Lesson 4C: Adding & Subtracting Rational Expressions

One of the most common household activities is budgeting. You must track your expenses, pay bills on time, and monitor interest charges. Without even thinking about it, you use rational numbers (fractions and decimals) for all these tasks. You add and subtract rational numbers every day. Your goal in this Training Camp lesson is to become as comfortable adding and subtracting rational expressions as you are with rational numbers.

By the end of this lesson, you should be able to

	determine the non-permissible values when adding or subtracting two rational expressions
	determine, in simplified form, the sum or difference of two rational expressions