Ratios and Rates

A ratio is a comparison of two quantities, showing how many times one value contains or is contained within the other.

A rate is a ratio that compares two different kinds of quantities, often expressed as a quantity per unit of another quantity.

A unit rate is a rate in which the denominator is 1, indicating how much of one quantity corresponds to one unit of another quantity.

To find a unit rate, divide both quantities in the ratio by the quantity in the denominator.

A ratio compares two quantities of the same kind, while a rate compares two quantities of different kinds.

Two ratios are equivalent if they represent the same relationship between quantities, even if the numbers are different.

1.5 laps.

X and Y.

4 cups of sugar.

3:5.