The correct option is A 27
From observation we can notice that, all the fractions have same numerator but different denominator.
For fractions with same numerators and different denominators:
The higher the denominator, the lesser the fraction.
So, for the fractions 25, 23, 24 and 27 the denominators can be compared as 7 > 5 > 4 > 3.
Hence, the fractions can be compared as 27<25<24<23
Therefore, 27 is lesser than 25.