"Rational" refers to the ability to think logically and make decisions based on reason rather than emotions or impulses. It involves using critical thinking skills to analyze information, weigh options, and arrive at conclusions that are sensible and justifiable. Rational thinking is essential in problem-solving and decision-making processes. In mathematics, a rational number is defined as any number that can be expressed as the quotient of two integers, where the denominator is not zero. This includes whole numbers, fractions, and finite decimals. Understanding rational numbers is fundamental in various fields, including science, finance, and engineering.