Answer:
1/2 of an hour
Step-by-step explanation:
the movie is three hours long, I would divide it into 3 parts, each being an hour long. because it says he watched 1/6 of the movie so far you would want to split those 3 parts in half to make 6 parts, each being 30 minutes. so if we took one of those hours, and the time he watched 1/6 of the movie which would be 30 minutes, an hour is 60 minutes, so 30 mintues is half an hour