Name all sets of real to which each numbers belongs 2/3?

Natural - Natural numbers include only positive whole numbers beginning with 1.

Ex. 1, 2, 3, 4, 5 ...

Whole - Whole numbers include all Natural Numbers and 0.

Ex. 0, 1, 2, 3, 4, 5 ...

Integer - All Whole and Natural Numbers, and negative non-decimal numbers.

Ex ... - 2, - 1, 0, 1, 2, 3 ...

Rational - All Natural and Whole Numbers and Integers. Also included all repeating decimals and terminating decimals. (No never-ending, no pattern decimals.)

Ex. 2/3, - 1.5, 1, 2, - 8 ...

Real - All Natural and Whole Numbers, Integers, and Rational Numbers.