Rational Numbers Closure Property

[Sakshat]

The Closure property means that when two numbers of a specified group like (whole numbers) or (natural numbers) are added ,subtracted ,multiplied or divided the answer is also of the same group. The closure property is said to be applied on rational numbers. But the question is that when we add 1/2 and 1/2 the answer is 2/2 that is 1 and 1 does not come in the group of rational numbers.

 

[Deleted member 4993]

The Closure property means that when two numbers of a specified group like (whole numbers) or (natural numbers) are added ,subtracted ,multiplied or divided the answer is also of the same group. The closure property is said to be applied on rational numbers. But the question is that when we add 1/2 and 1/2 the answer is 2/2 that is 1 and 1 does not come in the group of rational numbers.

Why do you think 1 is not a rational numbers?

According to:

http://mathworld.wolfram.com/RationalNumber.html

there should not be any conflict in including 1 into group of rational numbers.