👉 In mathematics, the term "real number" is used to refer to any number that can be expressed as a ratio of two integers. This means that a real number can be thought of as a number that cannot be expressed as a fraction with a denominator that is smaller than 1. Real numbers are also known as rational numbers, and they include all the natural numbers (including zero), the negative integers (-3, -2, -1, 0, 1, 2,
