numbers that are not the whole numbers and their opposites
-1, -2, -3, -4, -5, -5, -6, ........... -infinity
Some types of rational but noninteger numbers are fractions, negative fractions, decimals, any kind of percent, etc. Integers arepositive and negative whole numbers, like 24 or -6. A rational but noninteger example is 5% or -3/4.
Well the most obvious one is the very basic pluralizing suffix 's'.
Most things are non-integer. A taste or smell, for example.