Denominator: Definition The denominator is the bottom

Denominator Definition The denominator is the bottom number in a fraction. We write the denominator just below the fraction bar. For example, in the fraction 4 5, 5 is the denominator . Denominator A fraction's denominator is the portion of the fraction that falls below the fractional bar. The denominator represents the total number of parts that comprise a whole. A fraction is distinguished by a horizontal bar between two numbers and, on occasion, by the symbol "/." The "fractional bar" is the name given to this bar or symbol. Learn what a denominator is, how to compare it with a numerator, and how to find the common and least common denominators of fractions. Also, see how to rationalize the denominator of a fraction with irrational or root numbers.