Final answer:
Adam watches 3 hours of TV on each weekday for a total of 15 hours, plus 12 hours on the weekend, leading to a total of 27 hours per week. The fraction representing the time he spends watching TV each week is 27/1, as we are not comparing it to other activities or available time.
Step-by-step explanation:
The total amount of time Adam watches television each week can be calculated by multiplying the hours he watches on weekdays by the number of weekdays, and then adding the weekend hours. There are 5 weekdays, and Adam watches television for 3 hours on each of those days. So for the weekdays, Adam watches TV for 3 hours/day × 5 days = 15 hours. On the weekend, Adam watches a total of 12 hours. Summing these up gives us a total of 15 hours + 12 hours = 27 hours per week.
To represent the fraction of time he spends watching TV each week, we would need a context for comparison, like the total available hours in a week. However, with the provided information, the fraction of hours spent specifically on watching TV each week by itself without a comparison is simply 27/1 because we're looking at the fraction of the total hours he spends on TV relative to itself.