04. Give one example each to show that the rational numbers are closed under addition, subtraction and multiplication. Are rational numbers closed under division? Give two examples in support of your answer.
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We can say that rational numbers are closed under addition, subtraction and multiplication. For example: (7/6)+(2/5) = 47/30. 2) No, rational numbers are not closed under division. ... As a division of two rational numbers 2 and 0 is not a rational number, so the division of two rational numbers is not closed.
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