# Rate Definition in Math – Unit Rate, Ratio, Examples, Facts, FAQs

## What Is Rate in Math?

A rate is a way of comparing two related quantities that are measured in different units. It tells us how much of one thing is happening in relation to another.

Example: If you are driving a car and you want to know how fast you are going, you can look at your speedometer, which measures your speed in miles per hour (mph). The rate tells you how many miles you are driving in one hour.

Rates are used in many everyday situations, like measuring how much you save per week or how many points you score in a game per minute.

In ratios, we use the word “to” for comparison, while in rates, we use the word “per” to indicate the comparison between two quantities with different units. The use of “per” or “/” symbol in rate problems helps to represent the amount of one quantity in relation to another quantity with distinct units.

Example: Robert’s typing rate is 100 words per minute. It means that he can type 100 words in one minute. Here, words and minutes are two different units being compared.

## Rate Definition In Math

In mathematics, a rate is a comparison between two quantities with different units, expressed as a ratio representing the amount of one quantity per unit of another. Rate can be defined as a ratio that expresses the comparison of two different quantities which have different units.

Common examples of rate:

• Speed: Miles per hour (mph) when driving a car.