Which is the better buy? Using unit rate

Learn how to compare prices using unit rates. A unit rate tells you the cost of one. In order to compare different products, you can set up a unit rate. For example, which is the best buy, 9 can for 10 dollars or 15 cans for 13 dollars. You can create an equivalent fraction by dividing the numerator and denominator by the original denominator.

Definition Unit Rate Short
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