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A number is rational if it has a pattern or it comes to an end.

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Q: How can you know that a number is rational?
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Related questions

How can you know if a negative number is a rational number or not?

If its positive version is rational then it is rational and if not, it is not.


How do you know if a whole number is rational or irrational?

It is always rational.


If you do not know the square root of a really big number how do you know if its rational?

Assuming your number is an integer: if the number is a perfect square, the number is of course an integer, and therefore rational. If the number is NOT a perfect square, it is irrational.


How do you know if a number rational or irrational?

If it can be expressed as a ratio of two integers, p and q (q not 0) then it is rational. Except in some trivial cases, it is not easy to know if a number is not rational - and is therefore irrational.


Is 5.2 Rational Or Irrational?

-52 is a rational number because it can be expressed as a fraction in the form of -52/1


What are a lot of examples of rational numbers?

That's a tough question. I know what a rational number is,but I don't know how many is 'a lot'.Here are several:122.7182833.1415926544.74.074.0073/3232/3Here's a secret: ANY number that you can completely write downon paper with digits is a rational number. Go to it !


Is a mixed number a rational or irrational number?

If you can write the whole thing down on paper with digits, then it's rational.


Is 3.456 a rational or irrational number?

It is a rational number. It can be written as a fraction.


Is negative 6 a rational number?

Yes. A number is called a rational number if it can be written as the ratio of two integers. (-6) and 1 are both integers. -6 = -6/1. Therefore -6 is a rational number. Rational numbers can be either positive or negative (zero is also a rational number).


Is a negative fraction a real number a rational number an irrational number an integer or a whole number?

I dont know nerdsI sometimes wish that I knew only nerds.The answer is rational.


Is 11 squared rational or irrational?

It's the ratio of 121 to 1, so it's rational. I think the square of any rational number is a rational number. In fact, I'm sure of it, because I know how I could prove it.


Is 9 a rational number?

Yes, it is. I am in grade 7, so the only number that is not rational that I know of is pi. 3.14159265358979323846… So any number negative or positive.