Final answer:
To find out how many pounds Frank lost, subtract his current weight from his original weight. The correct answer is C) 31 and 3/5 pounds.
Step-by-step explanation:
To find out how many pounds Frank lost, we need to subtract his current weight from his original weight.
Frank originally weighed 230 and 1/2 pounds, which can be written as 230.5 pounds.
His current weight is 198 and 3/5 pounds, which can be written as 198.6 pounds.
To find the difference, we subtract 198.6 pounds from 230.5 pounds. This gives us 31.9 pounds.
Therefore, Frank lost 31 and 9/10 pounds, which can be rounded to 31 and 4/5 pounds.
The correct answer is C) 31 and 3/5 pounds.