Introduction to ratios | Ratios, proportions, units, and rates | Pre-Algebra | Khan Academy
14:13
YouTubeKhan Academy
Introduction to ratios | Ratios, proportions, units, and rates | Pre-Algebra | Khan Academy
What a ratio is. Simple ratio problems. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/pre-algebra/rates-and-ratios/ratios_and_proportions/e/ratio_word_problems?utm_source=YT&utm_medium=Desc&utm_campaign=PreAlgebra Watch the next lesson: https://www.khanacademy.org/math/pre-algebra/rates-and-ratios ...
2.4M viewsNov 5, 2009
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