Final answer:
To find out how much of the movie is left, subtract the time already watched from the total length of the movie.
Step-by-step explanation:
To find out how much of the movie is left, we can subtract the amount of time already watched from the total length of the movie.
Let's convert the mixed numbers into improper fractions:
Total length of movie = 2 1/3 hours = 7/3 hours
Time already watched = 1 2/9 hours = 11/9 hours
Now, subtract the time already watched from the total length:
7/3 - 11/9 = (7/3) - (11/9) = (7/3) - (11/9) * (3/3) = 7/3 - 33/9 = (7 - 33)/9 = -26/9
Since time cannot be negative, we can say that he has watched more than the length of the movie. In this case, the answer would be 0 hours left.