Is the following number rational or irrational?
-0.25

Question

Is the following number rational or irrational? 
-0.25

anonymous · Answer

irrational

parthkohli · Answer

How do you find it irrational?

anonymous · Answer

The definition of a rational number is that it can be written as:$$p/q$$ where p and q are both integers. Can you write it like that?

anonymous · Answer

no

parthkohli · Answer

Like if you can say a number in two seconds, then it is always rational.
Minus two point five.
Took me a second lol

parthkohli · Answer

But you'd take forever to say $\pi$ in its digits, so it is irrational.

goformit100 · Answer

rational number are those which are not further divisible 
or they are non terminating

anonymous · Answer

Thank You! :)

parthkohli · Answer

But there are some exceptions like 0.123123123123 which is a rational number, but not to think too hard about this one.

anonymous · Answer

alright.. can you help me with some other problems please :)