Hey there!
These are the steps involved:
Divide 101 by 25.
101 ÷ 25 = 4
Remainder= 1
So, this basically means that 25 fits into 101, 4 times and has a remainder of 1.
4 will be the whole number, and 1 will be the numerator. So, what will be the denominator?
Well, the denominator is the same as the denominator in the proper fraction.
So, the final answer is:

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Thank you! :D