Rational

Definition: In mathematics, the term “rational” refers to a number that can be expressed as the quotient or fraction of two integers, where the denominator is non-zero.

Explanation:

• A rational number can be written in the form a/b, where a and b are integers, and b is not equal to zero.
• The numerator (a) represents the dividend, while the denominator (b) represents the divisor.
• The word “rational” is derived from the Latin word “ratio,” which means “ratio” or “quotient.”
• All integers are rational numbers since they can be expressed as fractions with a denominator of 1 (e.g., 5 = 5/1).
• Rational numbers can be either positive, negative, or zero.
• Rational numbers include fractions, terminating decimals, and repeating decimals.
• The set of rational numbers is denoted by the symbol ℚ or Q.