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Mathematics · Grades 3–4

Ratio

noun

A comparison of two numbers by division, showing how many times one value contains the other.

Example Sentences

"The ratio of boys to girls is 3:2, meaning 3 boys for every 2 girls."

"Mixing paint in the correct ratio ensures the right color."

Synonyms & Related Terms

comparisonfractionproportion

Quick Check

Which best describes the meaning of ratio?

Study Tips

To remember ratio, try writing it in a sentence of your own. Connect it to something you already know about mathematics.

Use it in conversation today — saying a word aloud three times helps lock it into long-term memory.