Which numbers are rational and irrational

[rationalquestion]

Hi guys.
Who can answer these number questions.
Which numbers are rational?
Which numbers are irrational?
What is the difference between rational and irrational numbers.

[martosss]

Rational are all numbers, which can be expressed in the form , qhere [texp\in Z,q\in Z_0[/tex]. That means p is a whole number, q is also a whole number, but cannot be 0.
An example for rational numbers is

Irrational numbers on the other hand cannot be expressed in the form .
Examples are and so on.

[martosss]

Rational are all numbers, which can be expressed in the form , where . That means p is a whole number, q is also a whole number, but cannot be 0.
An example for rational numbers is

Irrational numbers on the other hand cannot be expressed in the form .
Examples are and so on.

I fixed some typing mistakes.
It will be a good idea if I can edit my posts

[Ellery Cade]

Irrational numbers are quotients with non-repeating, non-terminating decimals.

So, the rational ones are 1, 3, and 4.
The irrational ones are 2 and 5.

[Guest]

hi guys let me tell you the irrational numbers definition .A number is called irrational, if it cannot be expressed as quotient of integers pq, q ≠ 0. .Non-repeating, non-terminating decimal numbers cannot be expressed in the form of a fraction.The cube root of any non-perfect cube number is also an irrational number. 3√3
Examples of irrational numbers are 2√, 3√, 7√, 1.123245278921763
If you want more explanation then go to the link:
http://www.mathcaptain.com/number-sense/irrational-numbers.html

[manoj9585]

A rational number is any number that can be written as a fraction or ratio that is p/q. here q should not be zero.
If it cannot be written as a fraction or ratio, it is an irrational number.

Example :

Pi is an example of an irrational number.
1.5 is an example of a rational number.

[Guest]

I do not understand why you say that

Pi is an example of an irrational number.

why?

Also is it possible q=0?

[Guest]

There is a nice article on rational and irrational numbers on ezine articles directory. The following link takes you to the article, hope it clears the concept of rational and irrational numbers further.

http://ezinearticles.com/?What-Are-Rati ... id=5553257