6 1/2 hours on Monday
8 2/3 hours on Tuesday
You have to make the fractions equal to each other so you would have
1/2 x 3 = 3/6
2/3 x 2 = 4/6
Then add them together to get
7/6 or 1 1/6
6+8 = 14
Then add the 1 to 14 to get 15
1/6 of an hour is 10 minutes
Therefore your answer would be 15 hours and 10 minutes