The Importance of Proportions

When comparing the proportions of two ratios, this student appears to hold the misconception that if the difference between the two terms of each ratio is the same then the ratio is the same proportion. For example the difference between the ratio of 4:3 and 3:2 is one part in each. 4 parts subtract 3 parts is 1 part. 3 parts subtract 2 parts ... ................
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