ratio

Also known as ratio of values, dimensionless ratio, dimensionless quotient

thumb|The ratio of width to height of standard-definition television

AI overview

A ratio is a way of comparing two quantities by showing how many times one is larger or smaller than the other. Ratios matter because they help us understand proportions and relationships in everyday things—like how wide a TV screen is compared to how tall it is.

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Commons category: Ratios
Unicode character: ∶

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~18 min read

Article

14 sections

Contents

Notation and terminology
History and etymology
Euclid's definitions
Number of terms and use of fractions
Proportions and percentage ratios{{anchor|Proportions|Percentage ratios}}
Reduction
Irrational ratios
Odds
Units
Triangular coordinates
See also
References
Further reading
External links

thumb|The ratio of width to height of standard-definition television

In mathematics, a ratio () shows how many times one number contains another. For example, if there are eight oranges and six lemons in a bowl of fruit, then the ratio of oranges to lemons is eight to six (that is, 8:6, which is equivalent to the ratio 4:3). Similarly, the ratio of lemons to oranges is 6:8 (or 3:4) and the ratio of oranges to the total amount of fruit is 8:14 (or 4:7).