### Unit 5: Rational Expressions

In this unit, you will learn how to evaluate rational expressions and perform operations such as addition, multiplication, and division involving rational expressions. You will apply the concept of multiplying rational expressions to dimensional analysis, where you will convert units from single/dual unit of measurement to another.

**Completing this unit should take you approximately 17 hours.**

Upon successful completion of this unit, you will be able to:

- evaluate rational expressions;
- reduce rational expressions;
- multiply rational expressions (with and without factoring);
- divide rational expressions (with and without factoring);
- find least common denominators;
- add and subtract rational expressions (with and without common denominators); and
- convert units using dimensional analysis (with one and two units).

### Unit 5 Assessment

Please take this assessment to check your understanding of the materials presented in this unit.

**Notes:****There is no minimum required score to pass this assessment, and your score on this assessment**__will not__factor into your overall course grade.**This assessment is designed to prepare you for the Final Exam that will determine your course grade. Upon submission of your assessment you will be provided with the correct answers and/or other feedback meant to help in your understanding of the topics being assessed.****You may attempt this assessment as many times as needed, whenever you would like.**