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"Ratio" Definition

noun

Mathematics A relationship between two quantities, normally expressed as the quotient of one divided by the other: The ratio of 7 to 4 is written 7:4 or 7/4.
Relation in degree or number between two similar things.
The relative value of silver and gold in a currency system that is bimetallic.
The indicated quotient of two mathematical expressions.
The relationship in quantity, amount, or size between two or more things .