Asked by Anonymous

show that the set of nonzero rational numbers is closed under division

Answers

Answered by Jordan
Sorry unknown but Im not sure
Answered by Steve
since a,b,c,d are all nonzero

(a/b) / (c/d) = a/b * d/c = ad/bc

which is a rational number.

There may be other items to consider, depending on what you have already established ...
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