round() public

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# File lib/rational.rb, line 373
  def round()
    if @numerator < 0
      num = -@numerator
      num = num * 2 + @denominator
      den = @denominator * 2
      -(num.div(den))
    else
      num = @numerator * 2 + @denominator
      den = @denominator * 2
      num.div(den)
    end
  end
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