The denominator of a fraction or quotient 
is the expression 
below the bar. In a numerical fraction 
, it is the number 
. In a quotient 
, it is the expression 
.
Denominator
See also
Fraction, Numerator, Ratio, Rational Number, VinculumExplore with Wolfram|Alpha
Cite this as:
Weisstein, Eric W. "Denominator." From MathWorld--A Wolfram Resource. https://mathworld.wolfram.com/Denominator.html