A denominator is the bottom number of a fraction. It tells how many equal parts make up the whole. It also names the fraction, such as "half", "thirds", "fourth", etc.
For example:
1/4 - 4 is the denominator and the name of the fraction, one fourth or one quarter.
The denominator is the bottom number in a fraction. For example, if 3/4 was your fraction, the 4 would be your denominator.
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The same numerator as which numerator and the same denominator as which denominator?
You multiply the numerator and the denominator by the "conjugate" of the denominator. For example, if the denominator is root(2) + root(3), you multiply top and bottom by root(2) - root(3). This will eliminate the roots in the denonimator.
the denominator
A common denominator is needed when adding or subtracting fractions of different denominators.
With a denominator of 100, 6% = 6/100