rational
A half belongs to the positive fractions family, which comes under fractions, which comes under the large family of rational numbers.
irrational
Rational numbers and Real numbers
It belongs to the interval (25, 27.3), or [-20.9, 10*pi], and infinitely more such intervals.It also belongs to the set of rational numbers, real numbers, complex numbers and quaternions.
Negative integers, rationals and real numbers
Rational
rational
Positive numbers
Rational
Irrational
A half belongs to the positive fractions family, which comes under fractions, which comes under the large family of rational numbers.
Rationals and the reals, themselves.
irrational
Numbers that include real numbers are natural numbers, whole numbers, integers, rational numbers and irrational numbers.
RATIONAL , doing the same program .
Integer, Real, whole, and natural. I may have skipped a few.