Rational numbers are one very common type of number that we usually study after integers in math. These numbers are in the form of a/b, where a and b can be any integer and b ≠ 0. Most often people find it confusing to differentiate between fractions and rational numbers because of the basic structure of numbers, that is a/b form. Fractions are made up of whole numbers while rational numbers are made up of integers as their numerator and denominator. Let’s learn more about rational numbers in this lesson.