ALGEBRA
12345678910
rational
A half belongs to the positive fractions family, which comes under fractions, which comes under the large family of rational numbers.
irrational
real number, imaginary, irrational rational integers, positive and negative
Numbers do not have family trees.
If you know his real name, you can Google "(his real name and surname) family tree" and maybe you can get a lead there.
ALGEBRA
Negative integers, rationals and real numbers
12345678910
Numbers that include real numbers are natural numbers, whole numbers, integers, rational numbers and irrational numbers.
Positive numbers
Rational
rational
Real Numbers are used everywhere! -My family has (3) cars. -We lost 5 kids. (-5)
Rational