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## Ratios Worksheets & Proportions Worksheets

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What are ratios and proportions?

A ratio is a relationship between two or more quantities expressed as a fraction (3/5) or in this form 1:3 - which is read as one to three (the colon ':' is read as 'to').

A proportion is similar to a ratio, but usually has a one for the denominator. So, the ratio, 3:4 could also be written as the proportion, .75 to 1. Proportion also has a general meaning - a relationship where one quantity varies directly with another is called proportional.

How much food a family needs is proportional to the number of people in the family. As the number of people go up, the amount of food also increases. However, the number of carpets in a house is usually not proportional to the number of people. A larger family might or might not have more carpets, you can't tell.

An interesting fact about ratios and proportions.

You can generate the golden ratio on a hand held calculator by starting with any number. Use the 1/x key to get the inverse. Now add one to that.