As a number, half-gallon can be represented as 0.5. In order to answer this question we will define each term:
whole numbers are numbers that can be defined as a <span>number without fractions which are greater or equal than 0. E.g. 2 0 1 5 6 85 </span> integer numbers are numbers that can be defined as a number without fractions but which can be either equal to 0 or greater and lower than 0 E.g. -9 -68 8 0 59
rational numbers are any number that<span> can be expressed as a fraction p/q of two integers E.g. 0.5 = 1/2 1 = 1/1 1.25 = 5/4 </span> irrational numbers are those which have an approximate value E.g. pi = 3.14... √2 = 1.41.....
real numbers are all of the above
From all those kind of choices the most accurate representation is rational numbers.
