Final answer:
The fraction 25 converts to a whole decimal number, the fraction 5/7 converts to a repeating decimal number, and the fraction 12/5 converts to a terminating decimal number.
Step-by-step explanation:
The fraction 25 converts to a whole decimal number. This is because 25 can be written as 25.0 or 25.00, which represents a whole number.
The fraction 5/7 converts to a repeating decimal number. When we divide 5 by 7 using long division, we find that the decimal representation is 0.714285 repeating.
The fraction 12/5 converts to a terminating decimal number. When we divide 12 by 5, we get 2.4, which does not repeat or go on infinitely.