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Definition of fraction

fraction

/ˈfræk.ʃən/
frac · tion

Adverb:fractionally
•
Plural:fractions
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Adjective:fractional
•
Past Simple:fractioned
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Past Participle:fractioned
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Present Participle:fractioning
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fraction Lexical Profile

fraction Game Scores & Validity

• noun

1

A numerical quantity that is not a whole number, representing a part of a whole.

Example

"The students learned how to add and subtract fractions with different denominators."


2

A small or tiny part, amount, or proportion of a larger whole.

Example

"She completed the project in a fraction of the time it took her colleagues."


3

A portion of a mixture separated by a physical or chemical process such as distillation or crystallization.

Example

"The crude oil is heated in a tower to separate it into lighter and heavier fractions."

Synonyms
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Antonyms
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• verb

1

To divide or separate into fractions, parts, or distinct chemical components.

Example

"The laboratory technicians fractioned the blood samples to isolate the plasma."

Synonyms
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• Rhymes for fraction

Word Origin & Etymology

Late Middle English: from Old French fraccion or Latin fractio(n-) 'breaking', from the verb frangere 'to break'.

Usage Trend

Historical frequency of usage in published text.

180019102020

Cite this Entry


Wordmom. (2026). Definition of Fraction. In Wordmom Dictionary. Retrieved Oct 16, 2026, from https://wordmom.com/dictionary/fraction
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