A technician spends 15 1/2 hours at work. Repairing a refrigerator takes 1/2 of the time, and repairing a window air conditioner takes 1/3 of the time. The technician spends 1/18 of the time ordering parts and 1/9 of the time eating lunch. Find the number of hours the technician spends repairing a window air conditioner.
Fill in the blank(s) with the appropriate word(s).
5 1/6
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