It is quite easy friend. To achieve 0.097, we have to divide 97 with 1000. We can get the answer by watching the question like as we have 3 digits here in this question after the decimal point in numerator so, it must be divided with 1having 3 zeroes. If the question is 0.97 then the answer must be 97/100 as we have 2 digits after the decimal point in numerator. So, here is the answer 97/1000.