The task is to generate the correct answer for a given math problem.

Example Input: Problem: if the personal income tax rate is lowered from 46 % to 32 % , what is the differential savings for a tax payer having an annual income before tax to the tune of $ 36000 ?
Example Output: $ 5040

Example Input: Problem: find the greatest number that will divide 205 , 626 and 588 leaving 5 , 6 and 8 as remainders respectively
Example Output: 2

Example Input: Problem: if w / x = 2 / 3 and w / y = 3 / 5 , then ( x + y ) / y =
Example Output:
9 / 10