Instructional video: Multiply and Divide Fractions

NOTE: Correction to this problem. Youtuber LddStyx pointed out that I forgot to “kill a 7 in the brakedown of 35” so the final answer to this question should be 143/12 … Thank you LddStyx for the good eye.

http://www.youtube.com/v/5AzxadzOUgo&f=gdata_videos

See original here: 
The Language of Mathematics 12: Multiply and Divide Fractions

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