# File format.rb, line 557
    def getFract (num, spaceLeft)
      num[1] = "" if (num[1].nil?)
      @fraction.times {num[1] += '0'}
      fract = num[1][0,spaceLeft + 1]
      if (fract.size() >= spaceLeft + 1)
        if ((fract[spaceLeft,1].to_i) >= 5 )
          fract[spaceLeft - 1, 1] = ((fract[spaceLeft - 1, 1].to_i) + 1).to_s
        end
      end
      return fract[0,spaceLeft] 
    end