Posted in: Schools, Uncategorized J. Ratio Written by Elaine Liu October 18, 2020December 14, 2020 Leave a Comment on J. Ratio Ways to compare two quantities DifferenceRatio requirements: same unit. ratio does not give the actual number. “relative” part-part or part-whole model 2:7 or 2/7 if part-part: means for every 7 Thing I, there are 2 Thing II. 2:9 or 2/9 if part-whole: out of each 9 Things, there are 2 Thing I. use ratios to find how many times one number or quantity is as great as another. Equivalent ratios and simplest forms regroup by same factors shared by both quantities.common divisor – divisionOn the opposite, we can find equivalent ratios by multiplication. Proportionally expand or shrinkFind the missing term of a pair of equivalent ratios4:5 = 12:? Share this:TwitterFacebookLike this:Like Loading...