Is #3/4# a rational, irrational, natural, whole, integer or real number?
It's both real and rational.
The collections from wider to narrower:
(1) All numbers (including complex numbers, combinations with
(2) Real numbers (excluding
(3) Rational numbers can be written as the quotient, or fraction, or ratio, of two whole numbers, irrational numbers (like
(4) Whole=integer numbers are what they say they are
(5) Natural numbers are positive whole numbers