code: def convert_dms_to_dd(
              degree_num, degree_den,
              minute_num, minute_den,
              second_num, second_den):
          
          degree = float(degree_num) / float(degree_den)
          minute = float(minute_num) / float(minute_den)/ 60
          second = float(second_num) / float(second_den)/ 3600
          return degree + minute + second
docs: Convert the degree/minute/Second formatted GPS data to decimal
          degrees.
  
          @param degree_num: the numerator of the degree object.
  
          @param degree_den: the denominator of the degree object.
  
          @param minute_num: the numerator of the minute object.
  
          @param minute_den: the denominator of the minute object.
  
          @param second_num: the numerator of the second object.
  
          @param second_den: the denominator of the second object.
  
          @return: a decimal degree.