What is the identity for addition of rational numbers?

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Solution

Zero (0) is the identity for addition of rational numbers.
That means if 'a' is a rational number, then adding 0 to it gives the same number, i.e., a + 0 = a.

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Similar questions

Question 7
Zero (0) is:
(a) the identity for addition of rational numbers.
(b) the identity for subtraction of rational numbers.
(c) the identity for multiplication of rational numbers.
(d) the identity for division of rational numbers.

Question 8
One(1) is:
(a) the identity for addition of rational numbers.
(b) the identity for subtraction of rational numbers.
(c) the identity for multiplication of rational numbers.
(d) the identity for division of rational numbers.

Why is zero called the identity for the addition of rational numbers

Q. The additive identity for rational numbers is

The rational number $0$ is the additive identity for rational numbers.

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What is the identity for addition of rational numbers?

Zero (0) is the identity for addition of rational numbers. That means if 'a' is a rational number, then adding 0 to it gives the same number, i.e., a + 0 = a.

Zero (0) is the identity for addition of rational numbers.
That means if 'a' is a rational number, then adding 0 to it gives the same number, i.e., a + 0 = a.