1 / 4

Standard 45

Standard 45. Determine a common denominator for a given rational expression By Karlee Nesvik and Mackenzie Brown. Find the LCD of example 8/3x, 5/2. Step 1: Factor all the denominators. The first denominator "3x" has two factors, 3 and x. The second denominator "2" has only one factor, 2.

Télécharger la présentation

Standard 45

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript


  1. Standard 45 Determine a common denominator for a given rational expression By Karlee Nesvik and Mackenzie Brown

  2. Find the LCD of example 8/3x, 5/2 Step 1: Factor all the denominators. The first denominator "3x" has two factors, 3 and x. The second denominator "2" has only one factor, 2.

  3. Cont. Step 2: The LCD is the list of all the DIFFERENT factors in the denominators raised to the highest power that there is of each factor. Putting all the different factors together, we get (3)(x)(2) = 6x for our LCD. So, 6x would be the LCD of the two rational expression of 8/3x, 5/2

  4. Another Example: 3X/4 + X/8 3X x 2/ 4 x 2 + X/8 = 6X/8+ X/8= 7X/8 The Least Common Denominator (LCD) is 8. Multiply BOTH the top and bottom of the first fraction by 2 to create the common denominator. Remember, when adding "like" variables, add only the numbers in front of the variables (the coefficients).

More Related