The fractional part of 28.13 is ?
A. 0.13
B. 28.1
C. 2.81
D. 13.28

Hint: In this question first we must know the meaning of the fractional part. The fractional part of a non-negative real number is the excess beyond that number’s integer part. And we can represent every number as a nearby integer plus a decimal. And always try to separate the unit number and decimal number by each other for solving the question easily.

Complete step-by-step answer:
We have 28.13
If we separate the decimal and the unite number, we get
28+0.13
And we know that the meaning of fractional part which is the fractional part is integer part or integral part of a decimal number is the part to the left of the decimal separator. The part from the decimal separator to the right is the fractional part.
 So, in this question 28 is the unit number and the decimal part is 0.13
Hence the fractional part of 28.13 is 0.13
So, the option A is the correct option

Note: We can also do this question by alternative method which is look at the question and simply tell the number which is after the decimal and in this question 13 is the number after the decimal and just write this number in decimal like 0.13 and here is your answer so the fractional part of 28.13 is 0.13. Hence the option A is correct in that case also.