Answer:
[tex]4\frac{1}{6}[/tex] hours
Step-by-step explanation:
Substract total hours from hours Cai spent driving to find how long he was at work.
[tex]4\frac{2}{3}[/tex] - [tex]\frac{5}{6}[/tex] = ?
Substract the second expression [tex]\frac{2}{3} - \frac{5}{6}[/tex] by the first expression 4.
[tex]\frac{25}{6}[/tex]
Convert to a mixed number.
[tex]4\frac{1}{6}[/tex]
Therefore, the answer is [tex]4\frac{1}{6}[/tex] hours.
