How every integer is a rational number?

Answer 1

Absolutely. Only fractions can be irrational, numerically speaking (people can also be irrational, but that's a different use of the word).

Answer 2

Any integer n, can be written as n/1. Since it can be expressed as a ratio of two integers [ n is an integer and so is 1], it is, by definition, a rational number.

Answer 3

Every integer, N, is equivalent to N/1. That is, it can be expressed as a ratio of two integers and is, therefore, a rational number.

Answer 4

Yes. All integers are rational numbers.

Answer 5

Yes.

Answer 6

No

Answer 7

Yes

Answer 8

Yes.

Answer 9

Yes, it is.