Question

259除以259又260分之259

Answer 1

=259/(259^2/260)=259*260/(259*259)=260/259

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Answer 2

259÷(259+259/260)
=259÷[(259x260+259)/260]
=259x260/(259x260+259)
=259x260/259x(260+1)
=260/261

Answer 3

又什么