(Math.) The term in a fraction which indicates the number of fractional units that are taken. Note: In a vulgar fraction the numerator is written above a line; thus, in the fraction 5/9 (five ninths) 5 is the numerator; in a decimal fraction it is the number which follows the decimal point. See Fraction.
... it, what I then say, that the Fraction of Life can be increased in value not so much by increasing your Numerator as by lessening your Denominator. Nay, unless my Algebra deceive me, Unity itself divided by Zero will give Infinity. Make thy claim of wages a zero, then; thou hast the world under thy feet. Well did the Wisest of our time write: ... — Sartor Resartus, and On Heroes, Hero-Worship, and the Heroic in History • Thomas Carlyle
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