SOLUTION: show that the set of non zero rational numbers is closed under division

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Question 1196662: show that the set of non zero rational numbers is closed under division
Answer by MathLover1(20850) About Me  (Show Source):
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For any rational number "a",a%2F0+ is not a rational number.
So, if 0+is excluded from the set of rational numbers, then they are closed+under+division operation.