This video demonstration from Watch Know Learn will help students learning about proportions. The video will help students with some knowledge of proportions by showing examples of how to solve them. The definition of a proportion is included as well as examples of how to cross-multiply to solve proportion problems. The demonstration shows what a non-proportion problem looks like and how to solve it as well as a few examples of using the lowest common denominator to solve proportions. Flash player is required to view the video, and the running time for the video is 8:09.

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