What number doesn't belong in this set...name the other 4 numbers that are the same

Question

anonymous · Answer

1/4  -7  SQUARE ROOT OF 25 8/2 and  cube root of 1

anonymous · Answer

....

anonymous · Answer

you are not getting an answer because it could be literally anything
what does it mean "what number does not belong in this set"?

anonymous · Answer

you have 
$\frac{1}{4},-7,5,4,1$

anonymous · Answer

like the types of number....irrational...whole...natural..rational etc

anonymous · Answer

one of those numbers is a fraction
one is negative
who knows?

anonymous · Answer

ok but i have another question....

anonymous · Answer

is 0.6 repeating a rational or irrational number

anonymous · Answer

maybe the negative one doesn't belong
maybe the fraction doesn't belong
the question is not well posed

anonymous · Answer

it is rational
.6 repeating is $\frac{6}{9}=\frac{2}{3}$

anonymous · Answer

any repeating decimal is rational

anonymous · Answer

but what if it is .45678 repeating

anonymous · Answer

then that is rational as well

anonymous · Answer

as long as it repeats, it is rational

anonymous · Answer

okk

anonymous · Answer

HOWEVER
if you mean 
$$.456789101112131415...$$ then this is not repeating
it just has a pattern

anonymous · Answer

but if you mean 
$$.456784567845678...$$ then yes, it is rational

dape · Answer

Well all are integers except $\frac{1}{4}$.

dape · Answer

But I agree with satellite73, it's a vague question. All are positive real numbers except -7.