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Calculus IV
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Course: Algebra II / Intermediate Algebra
Topic: Rational Expressions
Subtopic: Operations III - Add & Subtract (same denominators)

Overview

In this lesson we add rational expressions where the fractions have the same denominator. To do so we simply add the numerators, simplify, and that result will be over the common denominator. When subtracting be careful to distribute the minus sign through the entire numerator of the fraction it precedes. Not doing so is a common error!

Objectives

By the end of this topic you should know and be prepared to be tested on:

Terminology

Define: "like" (same) denominators, "unlike" (different) denominators