What is the smallest sum of money that can be added to 2.45 to make it exactly divisible by 9?

To find the smallest sum of money that can be added to 2.45 to make it exactly divisible by 9, we first need to determine the remainder when 2.45 is divided by 9.

2.45 can be written as 245/100. When 245 is divided by 9, the remainder is 8.

To make 2.45 exactly divisible by 9, we need to add the difference between 9 and the remainder, which is 9 - 8 = 1.

Therefore, the smallest sum of money that can be added to 2.45 to make it exactly divisible by 9 is $0.01.