By the law of commutativity, one and a half is equivalent to half and a one, and “a” already refers to one, so you can just say “half and a”.
This has been “PkmnQ rewrites the English language to fit his own logic!” Tune in next time when he cracks the mystery of why the horse raced past the barn fell!
hold up
given that addition in the English language is represented by “and,” wouldn’t the law of commutativity indicate equivalence between “one and a half” and, not “half and a one”, but “a half and one”?
Correct, this is a part of the rewriting.