-(-x) is same as - x, Addition is associative for - Natural , rational and whole numbers, Between any two rational numbers, there lie - infinite rational numbers, If x be any rational number, than x+0 is - x, Reciprocal of x is - 1/x, If y be the reciprocal of rational number x, then the reciprocal of y will be - x, Additive identity of rational numbers is - 0, Rational numbers are not closed under - Division, The additive inverse of a/b is - -a/b, The product of two rational numbers is always a - Rational number,

Rational numbers

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