Khan Academy Static

Topic A includes lessons 1-8 and covers ratios, equivalent ratios, solving problems by finding equivalent ratios, associated ratios and the value of a ratio, and equivalent ratios defined through the value of a ratio.

9013_Intro_to_ratios.html

9014_Ratios_as_fractions.html

9016_Ratio_word_problem_boys_to_girls.html

9015_Ratio_word_problem_centimeters_to_kilometers.html