Lesson 8-2 Adding and Subtracting Rational

Lesson 8­2 Adding and Subtracting Rational Expressions.notebook

Lesson 8­2

April 28, 2017

Adding and Subtracting Fractions: Refresher

Adding and Subtracting Rational Expressions Lesson Objectives

• Determine the LCM of polynomials

• Add and subtract rational expressions

CCSS Addressed: A.APR.7

Dec 24­11:25 AM

Apr 29­1:28 PM

Examples

Examples

ex) Find the LCM of 15a2b3, 16b5c2, and 20a3c6

ex) Find the LCM of 18r2s5, 24r3st2, and 15s3t

ex) Find the LCM of x3 ­ x2 ­ 2x and x2 ­ 4x + 4.

ex) Find the LCM of p3 + 5p2 + 6p and p2 +6p + 9 

Apr 29­1:29 PM

Adding and Subtracting Rational Expressions: As with adding and subtracting fractions you MUST get a common denominator (LCM)

May 3­7:51 PM

ex) Simplify each expression a)

b)

ex) Simplify

May 3­7:53 PM

May 3­7:54 PM

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Lesson 8­2 Adding and Subtracting Rational Expressions.notebook

April 28, 2017

ex) Simplify

ex) Simplify

May 3­7:55 PM

May 6­12:02 PM

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