# Unit Rate

**Unit rate **is the ratio of *cost: number of units*. Then the ratio is simplified so that the number of units is 1.

Having a knack for unit rates can make you a smarter shopper. For example, let's say that you are craving some cheesy, crunchy goodness and are trying to decide between two bags of chips. The Shmoritos are $4.50 for 12 oz. Shmingles are $2.50 for 7.75 oz. You obviously want the most munch for your money, so which bag to buy?

To solve this crunchy conundrum, compare the *price per ounce* for each bag.

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