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Lowest Common Denominator

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Not Right For WatchKnowLearn
Ages: 14 - 18
Zero in the Denominator
From nextvista.org, produced by Jim P. Yang
This selection explains why zero in the denominator of a fraction is considered undefined.  Step-by-step explanation is shown on a white board while explained. ( 1:36)
September 19, 2011 at 09:49 PM
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Not Right For WatchKnowLearn
Ages: 9 - 13
Pre Algebra Lowest Common Denominator
From YouTube, produced by yourteachermathhelp
In this lesson, students learn to add unlike fractions by first finding a common denominator. For example, to add 1/2 + 1/3, first find the common denominator of 2 and 3, or the Least Common Multiple of 2 and 3, which is 6. Then multiply the numer... [more]
November 19, 2010 at 09:30 PM
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