The result of dividing one number or expression by another. Sometimes a ratio is written as a proportion, such as 3:2 (three to two). More often, though, ratios are simplified according to the standard rules for simplifying fractions or rational expressions.

Note: The word "rational" indicates that a ratio (in the second sense) is involved. The word rate also indicates a ratio is involved, as in instantaneous rate of change or average rate of change.



See also

Common ratio, rational numbers, ratio indentities, ratio test, rational equation, rational exponents, rational expression, rational function, rational root theorem, rationalizing substitution, rationalizing the denominator

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