Sagot :
Answer:
13 3/4
Step-by-step explanation:
hope it helps. (good luck)
Step-by-step explanation:
[tex]3 \frac{3}{6} + 4 \frac{3}{4} + 5 \frac{1}{2} \\ = (3 + 4 + 5) + ( \frac{6 + 9 + 6}{12} ) \\ = 12 + ( \frac{21}{12} ) \\ = 12 + 1 \frac{9}{12} \\ = 13 \frac{9}{12} \: or \: 13 \frac{3}{4} \: hours[/tex]