This video will demonstrate the definition and examples of proportion.
How to know if t he two ratios can describe a proportion?
Introduction to Ratios:
https://www.youtube.com/watch?v=nd4YaPkiNbg&t=121s
How to Simplify Ratios:
https://www.youtube.com/watch?v=3ICFiUgmIHk&t=28s
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