Answer: The answer is 8 3/4 hours
Explanation:
First, convert both of the fractions into an improper fraction.
15 1/2 = 31/2
6 3/4 = 27/4
Since the denominator of the fractions aren't equal, you will need to turn the smallest one into an equivalent fraction.
31/2 = 62/4
Now, let's subtract!
62/4 - 27/4 = 35/4
Convert it to a mixed fraction:
35/4 - 8 3/4
Therefore, Shay needs to work for 8 3/4 more hours. I'm in 6th Grade Science class right now, so sorry for the slow response :)