A rational number is a number that can be written as a fraction of two integers, where the numerator and denominator are integers and the denominator is not zero. In other words, a rational number can be expressed as p/q, where p and q are integers and q is not equal to zero. Rational numbers can include whole numbers, integers, fractions, terminating decimals, and repeating decimals. Examples of rational numbers include -3, 1/2, 0.75, and 5/3.
