numerator vs dividend

numerator and dividend both are nouns.

Word	Noun	Adjective	Verb	Adverb
numerator	Yes	No	No	No
dividend	Yes	No	No	No

As nouns, dividend is a hypernym of numerator; that is, dividend is a word with a broader meaning than numerator:

numerator (noun)	dividend (noun)
the dividend of a fraction	that part of the earnings of a corporation that is distributed to its shareholders; usually paid quarterly
	a bonus; something extra (especially a share of a surplus)
	a number to be divided by another number