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'.
An example of a non-integer is the number 3.14, which is a decimal representation of the mathematical constant pi. Non-integers can also include fractions, such as 1/2 or negative numbers like -2.5, as they do not represent whole numbers.
Most things are non-integer. A taste or smell, for example.