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Lesson 3

1. Lesson 3

1.8. Explore 4

Mathematics 20-1 Module 6

Module 6: Rational Expressions

 

Try This 3

 

Share 2 should help you solidify the way to approach the addition and subtraction of rational numbers. In Try This 3 you will apply the same pattern you discovered to the addition and subtraction of rational expressions.

  1. Simplify

  2. Simplify

    Need some help? Ask yourself these questions.

    • How do I approach this problem? answer

    • What do I do first? answer

    • What do I do next? answer

  3. Compare your strategies for adding the rational numbers in question 1 and adding the rational expressions in question 2.

course folder Save your work in your course folder.

 

Self-Check 2

 

Adding and Subtracting Rational Expressions Self-Check: Unlike Denominators

Complete Adding and Subtracting Rational Expressions Self-Check: Unlike Denominators.

 

Write equivalent expressions over the same denominator.
Find the LCD.
The approach is very similar to the approach you used to answer question 1.