19/403 of the people on the plane are crew
The given parameters are:
Population = 403
Passengers = 384
The number of crew is calculated using:
Crew = 403 - 384
Evaluate
Crew = 19
The fraction of crew is then calculated using:
Fraction = Crew/Population
This gives
Fraction = 19/403
Hence, 19/403 of the people on the plane are crew
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