What will be the difference of two rational numbers ? Give example

Dear Student,

Let aband cdbe two rational numbers such that a,b,c,d and b0 ,d0.ab,cdTheir difference.ab-cd=ad-bcbdNow products of two integers is an integer. ad,bc,bddifference of two integers is an integer. ad-bcAlso since b0 ,d0 bd0.Thus, ad-bcbdHence difference of two rational number is a rational number.example, 12-32=-1.

Regards

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A difference between two rational number will always be a rational number
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Can I get a example plz
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