![Trending Articles on Technical and Non Technical topics](/images/trending_categories.jpeg)
Data Structure
Networking
RDBMS
Operating System
Java
MS Excel
iOS
HTML
CSS
Android
Python
C Programming
C++
C#
MongoDB
MySQL
Javascript
PHP
Physics
Chemistry
Biology
Mathematics
English
Economics
Psychology
Social Studies
Fashion Studies
Legal Studies
- Selected Reading
- UPSC IAS Exams Notes
- Developer's Best Practices
- Questions and Answers
- Effective Resume Writing
- HR Interview Questions
- Computer Glossary
- Who is Who
Is every rational number a real number?
Rational Numbers:
A number that can be expressed in the form p/q where p and q are integers and q is not equal to zero is a rational number.
For example, $\frac{2}{3}, \frac{4}{5}, \frac{23}{6}, 8$.
Note: Any number divided by zero is undefined but not infinity.
Irrational Numbers:
A number that can’t be expressed in the form p/q where p and q are integers and q is not equal to zero is an irrational number.
For example, $\sqrt{3}, \sqrt{7}, π$.
Real Numbers:
Rational numbers and irrational numbers together are called real numbers.
For example, $ \frac{3}{4}, π, 5$
All the rational numbers are real numbers but all real numbers are not rational numbers.