In mathematics, a ratio is a comparative relation between two quantities. They are usually represented one of two ways, and are read as (the ratio of) a to b.
baora:b
Ratios occur in everyday life in countless scenarios.
| Scenario | Ratio Notation |
|---|---|
| Gasoline consumption when traveling by car | mpg=gallons of gasolinemiles traveled |
| Types of fruit in a bowl | apples : bananas |
| Rate of travel, according to the Distance Formula | rate=timedistance |
| Demographics of a school classroom | students who take the bus : students who walk |
One of the most common types of ratios in math is the fraction, which shows a comparison of a part to a whole.