0
It is rational.
A rational number is one that can be expressed as one integer over another (p/q) where the bottom number q is not zero.
Particularly the bottom number q can be 1, that is p/1 are rational numbers.
But any number divided by 1 is the number itself, that is p/1 = p where p is any integer
0 is an integer, thus 0 is a rational number.
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What happens when a rational number is divided by an irrational number?
When a rational numbers is divided by an irrational number, the answer is irrational for every non-zero rational number.
Is 0.555555 both rational and irrational rational neither rational nor irrational irrational?
No number can be both rational and irrational. And, at the level that you must be for you to need to ask that question, a number must be either rational or irrational (ie not neither). 0.555555 is rational.
Is the square root of -57 rational or irrational?
Neither. It is an imaginary number.
Is 0.686868 irrational rational both or neither?
If it ends there, it is rational. If the "68" continues on and on, it is also rational.
Is 0.686868 rational irrational both rational and irrational or neither rational nor irrational?
Irrational* * * * *No.The number can be represented by a terminating decimal so it is rational.A number cannot be both rational and irrational. And unless you are into higher maths (and if you are, the distinction between rationals and irrationals will be child's play) there are none that are neither rational nor irrational. So, for your purposes, they must be one or the other but cannot be both.Even if it is an infinite decimal, with 6868 going on for ever, it is rational.
