EXISTENCE OF ADDITIVE IDENTITY (ZERO) The sum of any rational number and zero (0) is the national number itself.

Zero is a rational number.

EXISTENCE OF ADDITIVE IDENTITY If a is any whole number then a+0=a=0+a

How many rational numbers exist between any two rational numbers ?

If x be any rational number then x + 0 is equal to

CLOSURE PROPERTY The sum of any two rational numbers is always a rational number.

The product of a non-zero rational number with an irrational number is always a/an

Addition of rational numbers

EXISTENCE OF RIGHT IDENTITY - The rational number 0 is the right identity.That is for any rational number (a)/(b) we have (a)/(b)-0=(a)/(b)

The product of a non zero rational number and its reciprocal is …………