https://brilliant.org › wiki › rational-numbers

Rational numbers are numbers that can be expressed as the ratio of two integers. Rational numbers follow the rules of arithmetic and all rational numbers can be reduced to the form \frac {a} {b} ba, where b\neq0 b = 0 and \gcd (a,b)=1 gcd(a,b) = 1. Rational numbers are often denoted by \mathbb {Q} Q.

https://www.math.net › rational-numbers

Rational numbers are numbers that can be written as fractions of integers, where the denominator is not 0. Learn how to identify rational and irrational numbers, and the properties of rational numbers such as closure and inverses.

https://openstax.org › books › prealgebra › pages › 7-1-rational-and-irrational-numbers

In general, any decimal that ends after a number of digits (such as 7.3 7.3 or −1.2684) −1.2684) is a rational number. We can use the place value of the last digit as the denominator when writing the decimal as a fraction.

https://openstax.org › books › contemporary-mathematics › pages › 3-4-rational-numbers

In chemistry, mixing a solution with a given concentration of a chemical per unit volume can be solved with rational numbers. In demographics, rational numbers are used to describe the distribution of the population. In dietetics, rational numbers are used to express the appropriate amount of a given ingredient to include in a recipe. As ...

https://math.libretexts.org › Bookshelves › Algebra › Elementary_Algebra_(Arnold) › 01:_The...

Any number that can be expressed in the form \(p/q\), where \(p\) and \(q\) are integers, \(q \neq 0\), is called a rational number. The letter \(\mathbb{Q}\) is used to represent the set of rational numbers. That is:

https://mathspar.com › rational-numbers

Rational numbers are numbers that can be obtained by dividing one integer by another. Let me explain with a typical example. 3 \hspace {0.2em} 3 and \hspace {0.2em} 4 \hspace {0.2em} 4 are two integers (numbers with no fractional or decimal part).

https://www.mathsisfun.com › rational-numbers.htm

Formal Definition of Rational Number. More formally we say: A rational number is a number that can be in the form p/q. where p and q are integers and q is not equal to zero. So, a rational number can be: p q. where q is not zero. Examples: Just remember: q can't be zero. Using Rational Numbers.