Are all rational numbers natural

Answer 1

All of the natural numbers are rational, but there are

still more rational numbers that aren't natural ones.

Example:

1, 2, 3, 4, and 5 are all natural numbers, and they're all rational.

11/2, 21/2, 31/2, 41/2, and 51/2 are also rational, but they're not natural numbers.

Answer 2

No. Some rational numbers are natural, but not all of them.

Answer 3

Yes