Symbols:Arithmetic and Algebra/Ratio

Ratio

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Let $x$ and $y$ be quantities which have the same dimensions.

Let $\dfrac x y = \dfrac a b$ for two numbers $a$ and $b$.

Then the ratio of $x$ to $y$ is defined as:

$x : y = a : b$

It explicitly specifies how many times the first number contains the second.

The $\LaTeX$ code for \(x : y\) is x : y .

Sources

• 2008: David Nelson: The Penguin Dictionary of Mathematics (4th ed.) ... (previous) ... (next): Appendix: Table $7$: Common signs and symbols: ratio