unit fraction
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rational number written as a fraction where the numerator is one and the denominator is a positive integer
~14 min read
Encyclopedic overview
Slices of approximately 1/8 of a pizza
A unit fraction is a positive fraction with one as its numerator, 1/n. It is the multiplicative inverse (reciprocal) of the denominator of the fraction, which must be a positive natural number. Examples are 1/1, 1/2, 1/3, 1/4, 1/5, etc. When an object is divided into equal parts, each part is a unit fraction of the whole.
Excerpted from Wikipedia’s “unit fraction” article, available under the CC BY-SA 4.0 licence.