Question

I just have a quick question. What is the difference between a rational and irrational number?

Answer 1

rational number is any number that can be expressed as the quotient or fraction p/q of two integers, p and q, with the denominator q not equal to zero.

Answer 2

irrational number cannot be expreesed as the quotient or fraction p/q of two integers, p and q, with the denominator q not equal to zero.

Answer 3

ok thank you

Answer 4

np

Answer 5

just want to add a note, a number that may not look rational may be rational in fact.
For example .11111... is a rational number, because .1111... = 1/9

Answer 6

It turns out that decimals which repeat are rational numbers like .13131313...

But decimals which don't repeat are irrational, like .121221222... also \(\large \bf \pi \) has a non repeating decimal.

Answer 7

but as long as you can take your number and express it as a fraction of two integers, it is a rational number.

For example $$ \Large \sqrt{4} =2 = \frac{2}{1} $$
Therefore square root of 4 is rational.
Can we do the same for square root of 2?