To find out how many more hours of sleep the superhero needs, we need to subtract the hours of sleep he got from the hours of sleep he needs.
The superhero needs 7 1/3 hours of sleep and only got 2 1/3 hours.
First, we can convert these mixed numbers into improper fractions.
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For 7 1/3: \[ 7 \frac{1}{3} = \frac{7 \times 3 + 1}{3} = \frac{21 + 1}{3} = \frac{22}{3} \]
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For 2 1/3: \[ 2 \frac{1}{3} = \frac{2 \times 3 + 1}{3} = \frac{6 + 1}{3} = \frac{7}{3} \]
Now, we subtract the two improper fractions: \[ \text{More hours needed} = \frac{22}{3} - \frac{7}{3} \]
Since they have the same denominator, we subtract the numerators: \[ \frac{22 - 7}{3} = \frac{15}{3} = 5 \]
Thus, the superhero needs 5 more hours of sleep.
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