About This Lesson
http://www.freemathvideos.com In this video series I will show you how to add and subtract rational expressions. When adding and subtracting fractions it is important for us only to combine terms when they have the same denominator. This holds true for rational expressions. Therefore are first step will be to determine the LCM of our denominators which we often call the LCD. We then multiply both the numerator and denominator by values or terms that will provide the LCD for both terms. We need to make sure we multiply both numerator an denominator by our value and terms to keep equivalent fractions so we are not changing the problem. Once we have two or more terms with common denominators we can then combine the numerators over the LCD. Subscribe! http://www.freemathvideos.com presents Mr. Brian McLogan wanted to become a math teacher because he knew he could make a difference in others lives. He set out after high school change the way that math education is taught, received and viewed. He believes that every child in this world has the right to access quality education especially math education as it allows students to open new doors and grow intellectually in other fields. Mr. Brian McLogan has taught Algebra 1, Algebra 2, Geometry and Pre-Calculus as a high school math teacher. He strives everyday to make math more meaningful, enjoyable and different every day. He is currently embarking on a mission to complete math videos for the major courses he has taught so that he can begin to focus more of his time creating unique and creative lessons for his classes. Creating new lessons is something that many teachers love to do but fall victim to having to go back to only teaching the processes of the course because the students need to know the information for their final test or next math class and they do not have the time to cover everything they would like. Mr. Brian McLogan feels students lose a lot of meaning of mathematics this way and are often deterred from the subject like he was. To prevent this Mr. Brian McLogan wants his videos to help supplement education so that more time can be spent working on problems in class or creating new lessons.
