What fraction is not equvialnet to 72 over 144?

Well, honey, any fraction that is not equivalent to 72 over 144 would be any fraction that is not reduced to its simplest form. So, if you have a fraction like 36 over 72, 24 over 48, or even 1 over 2, those are all different fractions that are not equivalent to 72 over 144. Just simplify those bad boys down and you'll see the magic happen.