The plural of *ratio* is **ratios**.

*A ratio is a mathematical comparison between two or more quantities or values. It expresses the relationship between these quantities in terms of their relative sizes or amounts. Ratios are typically represented as a fraction or with a colon (:). They are used in various fields, including mathematics, science, finance, and statistics, to analyze and compare data. Ratios can provide insights into proportions, rates of change, and patterns, and are used to solve problems and make informed decisions based on the relationships between different quantities.*

- Single Examples:
*The ratio of boys to girls in the class was 2:3.**They calculated the ratio of income to expenses to assess their financial situation.**The company analyzed the debt-to-equity ratio to evaluate its financial health.*

- Plural Examples:
*They compared the growth ratios of different industries over a five-year period.**We learned about the application of ratios in data analysis and statistical modeling.**The ratios of ingredients in the recipe needed to be adjusted to maintain the desired taste.*