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27 December, 12:39

Will the difference of two rational numbers be always rational

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  1. 27 December, 14:27
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    Since ad, bc, and bd are integers since integers are closed under the operation of multiplication and ad-bc is an integer since integers are closed under the operation of subtraction, then (ad-bc) / bd is a rational number since it is in the form of 1 integer divided by another and the denominator is not eqaul to 0
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