sagnik242 wrote:

I think this the explanation isn't clear enough, please elaborate. Please let me know in further detail how we solve, is it because the right answer has the largest denominator? Also where does the 1 come from?

Hi

I'll try to help you out on this one.

If the numerator remains the same, then larger the denominator, lesser is the value of the fraction (as there is an inverse relationship between the two).

Consider this; x= a-b

Keeping a constant, larger the value of b, smaller is the value of x and vice versa.

Combining the above two concepts we get

x(answer of the our question)= 1- fraction

As numerator 5 is constant, larger denominator will give lower value fraction.

Hence one with the highest denominator will have the highest value.