Simple Definition of fraction
mathematics : a number (such as 1/2 or 3/4) which indicates that one number is being divided by another; also : a number (such as 3.323) that consists of a whole number and a decimal
: a part or amount of something
Full Definition of fraction
Examples of fraction
a fraction of an inch
<if even a tiny fraction of that cookie broke off and fell into the delicate watch works, it could mess things up>
Origin of fraction
Middle English fraccioun, from Late Latin fraction-, fractio act of breaking, from Latin frangere to break — more at break
First Known Use: 14th century
Medical Definition of fraction
: one of several portions (as of a distillate) separable by fractionation <gamma globulin is a fraction of blood plasma>
Learn More about fraction
Thesaurus: All synonyms and antonyms for "fraction" Medical Dictionary: Definition of "fraction" Spanish Central: Translation of "fraction" Nglish: Translation of "fraction" for Spanish speakers Britannica English: Translation of "fraction" for Arabic speakers Britannica.com: Encyclopedia article about "fraction"
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