Those numbers which can be expressed as p/q are rational numbers.

Eg:- 2/3, 3/4

 

Q: Is 1/2 a rational number?

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Q: Is 2 a rational number?

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So, all natural numbers, whole numbers and integers are rational numbers.

 

Also learn how to find decimal expansion of numbers.

 

  1. Chapter 1 Class 9 Number Systems
  2. Concept wise
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Davneet Singh
Davneet Singh is a graduate from Indian Institute of Technology, Kanpur. He has been teaching from the past 7 years. He provides courses for Mathematics and Science from Class 6 to 12. You can learn personally from here https://www.teachoo.com/premium/maths-and-science-classes/.
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