# Ratios

A ratio is a comparison of two quantities using division. For example, if your friend can read 6 pages of a book in the same amount of time that you can read 5 pages, then the ratio of books your friend can read compared to you will be 6:5 or “6 to 5” or 6/5. This ratio will stay the same even if you read more than 5 or 6 pages. For example 6:5 is the same as 12:10 or 18:15, etc.