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Madhu in Math
What is Rational Number ?

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Pooja

In mathematics, a rational number is a type of real numbers, which is in the form of p/q where q is not equal to zero. Any fraction with non-zero denominators is a rational number. Some of the examples of rational number are 1/2, 1/5, 3/4, and so on. The number “0” is also a rational number, as we can represent it in many forms such as 0/1, 0/2, 0/3, etc. But, 1/0, 2/0, 3/0, etc. are not rational, since they give us infinite values.

How to identify rational numbers?

To identify if a number is rational or not, check the below conditions.

  • It is represented in the form of p/q, where q≠0.
  • The ratio p/q can be further simplified and represented in decimal form.

The set of rational numerals:

  1. Include positive, negative numbers, and zero
  2. Can be expressed as a fraction

Examples of Rational Numbers: 

p

q p/q

Rational

10

2 10/2 =5

Rational 

1

1000 1/1000 = 0.001

Rational 

50

10 50/10 = 5

Rational 

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