Question

$0$ is the additive identity of rational numbers.

Answer 1

Define additive identity :

Additive identity is the value when added to a number, resulting in the original number.

Zero is called the identity element, if we add any number with zero, the resulting number will be the same number. This is true for any real number, complex number, and even imaginary number.

example: Let us take a rational number $\frac{5}{7}$.

$\frac{5}{7}+0=\frac{5}{7}$

Hence, we can say that $0$ is the additive identity of rational numbers.