Final answer:
The total amount of snowfall over the three-day period is 137/8 inches.
Step-by-step explanation:
To find the total amount of snowfall over the three-day period, we need to add up the snowfall on each day. On the first day, it snows two and a half inches, which can be written as 2 1/2. On the second day, it snows two and a quarter inches, or 2 1/4. On the third day, it snows four and one-eighth inches, or 4 1/8. To find the total, we add:
2 1/2 + 2 1/4 + 4 1/8 = 5/2 + 9/4 + 33/8
To add fractions with different denominators, we need to find a common denominator. In this case, the common denominator is 8. Now, we can add:
(20 + 18 + 99)/8 = 137/8
So, the total amount of snowfall over the three-day period is 137/8 inches.