Question

The additive identify of rational numbers is
​

Answer 1

It means that additive identity is “0” as adding 0 to any number, gives the sum as the number itself. For any set of numbers, that is, all integers, rational numbers, complex numbers, the additive identity is 0. It is because when you add 0 to any number; it doesn't change the number and keeps its identity.

Answer 2

Additive identity of rotational no. is 0.

OK dear...