The definition of a fraction is a mathematical expression with a numerator and a denominator, a disconnected piece or a small part of something.
(noun)See fraction in Webster's New World College Dictionary
noun
Origin: ME < L fractio, a breaking < pp. of frangere, break
transitive verb
See fraction in American Heritage Dictionary 4
noun
Origin:
Origin: Middle English fraccioun, a breaking
Origin: , from Anglo-Norman
Origin: , from Late Latin frāctiō, frāctiōn-
Origin: , from Latin frāctus
Origin: , past participle of frangere, to break; see bhreg- in Indo-European roots
. Word History: Our word fraction did not originally have a mathematical sense. It goes back ultimately to the Latin verb frangere, “to break.” From the stem of the past participle frāctus is derived Late Latin frāctiō (stem frāctiōn-), “a breaking” or “a breaking in pieces,” as in the breaking of the Eucharistic Host. In Medieval Latin the word frāctiō developed its mathematical sense, which was taken into Middle English along with the word. The earliest recorded sense of our word is “an aliquot part of a unit, a fraction or subdivision,” found in a work by Chaucer written about 1400. One of the next recorded instances of the word recalls its origins, referring to the “brekying or fraccioun” of a bone.Learn more about fraction