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table of contents other areas in which we do business. depending on the scope of such regulation, certain of our facilities and operations, or the operations of our suppliers, may be subject to additional operating and other permit requirements, potentially resulting in increased operating costs. future regulatory developments future regulatory developments and actions could affect operations and increase operating costs for the airline industry, including our airline subsidiaries. see part i, item 1a. risk factors 2013 201cif we are unable to obtain and maintain adequate facilities and infrastructure throughout our system and, at some airports, adequate slots, we may be unable to operate our existing flight schedule and to expand or change our route network in the future, which may have a material adverse impact on our operations, 201d 201cour business is subject to extensive government regulation, which may result in increases in our costs, disruptions to our operations, limits on our operating flexibility, reductions in the demand for air travel, and competitive disadvantages 201d and 201cwe are subject to many forms of environmental regulation and may incur substantial costs as a result 201d for additional information. employees and labor relations the airline business is labor intensive. in 2015, salaries, wages and benefits were our largest expenses and represented approximately 31% (31%) of our operating expenses. the table below presents our approximate number of active full-time equivalent employees as of december 31, 2015. mainline operations wholly-owned regional carriers total.
|  | Mainline  Operations | Wholly-owned  Regional Carriers | Total |
| --------- | --------- | --------- | --------- |
| Pilots and Flight Crew Training Instructors | 13,100 | 3,200 | 16,300 |
| Flight Attendants | 24,100 | 1,900 | 26,000 |
| Maintenance personnel | 14,400 | 1,800 | 16,200 |
| Fleet Service personnel | 16,100 | 3,200 | 19,300 |
| Passenger Service personnel | 16,500 | 7,100 | 23,600 |
| Administrative and other | 14,700 | 2,400 | 17,100 |
| Total | 98,900 | 19,600 | 118,500 |
.
Please answer the following question with expressions if necessary.
and how much did the number of passenger service personnel represent in relation to this flight attendants one?
assistant
divide(23600, 26000)