A fraction is a part of the whole quantity.

**Answer: Fractional form of 2.5 is 5/2.**

**Explanation:**

To convert 2.5 into a fraction, firstly we will write the number in x/y form, where x and y are positive integers.

So, 2.5 can be written as 2.5/1.

For the removal of the decimal, we multiply and divide by 10.

And we get, 2.5/1 x 10/10 = 25/10 = 5/2.