half vs simple fraction

half and simple fraction both are nouns.

Word	Noun	Adjective	Verb	Adverb
half	Yes	Yes	No	Yes
simple fraction	Yes	No	No	No

As nouns, simple fraction is a hypernym of half; that is, simple fraction is a word with a broader meaning than half:

Other hypernyms of half include common fraction.

half (noun)	simple fraction (noun)
one of two equal parts of a divisible whole	the quotient of two integers
one of two divisions into which some games or performances are divided: the two divisions are separated by an interval

half (adjective)	simple fraction (adjective)
(of siblings) related through one parent only
consisting of one of two equivalent parts in value or quantity
partial

half (adverb)	simple fraction (adverb)
partially or to the extent of a half