👉 In mathematics, a "rational number" is an algebraic number that can be expressed as a ratio of two integers. The set of all rational numbers includes all integers and their positive and negative multiples. Rational numbers are fundamental in many areas of mathematics, including arithmetic, geometry, and calculus. They are important because they allow us to perform calculations with fractions and decimals, which are essential for many scientific and technological applications. In the context of the term "rational number," a "r
