Definition of fraction in English:


Syllabification: frac·tion
Pronunciation: /ˈfrakSH(ə)n


1A numerical quantity that is not a whole number (e.g., 1/2, 0.5).
More example sentences
  • The Mathematics Computation subtest assesses skills in computing with whole numbers, fractions, mixed numbers, decimals, and algebraic equations.
  • Use the method above to convert it into a fraction with whole numbers in the denominator.
  • Basic operations with whole numbers, fractions, and decimals were required to solve some problems, although many items required no calculations.
1.1A small or tiny part, amount, or proportion of something: he hesitated for a fraction of a second her eyes widened a fraction
More example sentences
  • Her goal was $60,000 but she was only able to get a fraction of that amount.
  • It's only a fraction of the amount of money necessary to attend most private schools.
  • If they did, the insurance company would have been charged a fraction of that amount.
tiny part, fragment, snippet, snatch, smattering, selection
tiny amount, little, bit, touch, soupçon, trifle, mite, shade, jot
informal smidgen, smidge, tad
1.2A dissenting group within a larger one.
More example sentences
  • On the other hand, we can see very clearly the fractions within the hardliner camp, again in contrast to what the pro-participation group is saying.
  • Today's Muslim is put under the spotlight and has been critically scrutinized not only by the non-Muslim communities' worldwide but also from fractions within our own community.
  • The state, then, is the condensation of a hegemonic relationship between dominant classes and class fractions.
1.3Each of the portions into which a mixture may be separated by a process in which the individual components behave differently according to their physical properties.
More example sentences
  • The aqueous, ethanol and ethyl acetate fractions were slowly evaporated to dryness under vacuum and stored at 4 degreesC for biological study.
  • The majority of the manufacturing is from the catalytic cracking of ethane, petroleum fractions, and crude oil.
  • Oil refining separates the various fractions of petroleum by a process called fractional distillation and takes place in a large plant called a refinery.
2 (usually the Fraction) (In the Christian Church) the breaking of the Eucharistic bread.


late Middle English: via Old French from ecclesiastical Latin fractio(n-) 'breaking (bread)', from Latin frangere 'to break'.

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