👉 In mathematics, a rational number is a real or complex number that can be expressed as a ratio of two integers. This means it has no fractional part and can be written in the form p/q, where p and q are integers and q ≠ 0. For example: - The rational numbers include natural numbers (1, 2, 3, ...), whole numbers (0, 1, 2, 3, ...) and integers (...,-1, -2, -