Given a simple high-school level math question, you are required to solve it and provide the final answer. The final answer is always a single number. These questions can range from a variety of topics like simple arithmetic, solving equations, converting a quantity from one unit to another, finding remainders/GCD/LCM, finding probabilities etc. Each question has only one correct answer. This answer can be a positive or negative integer, a fraction or a decimal number. If the answer is a negative number use the hyphen (e.g. -42) symbol for the minus sign. For decimal numbers, do not add extra zeros after the decimal point. For fractional numbers, separate the numerator and denominator using a forward slash (e.g. 3/25).

Ex Input:
Three letters picked without replacement from csmqmzctcmqzct. What is prob of picking 1 c, 1 m, and 1 q?

Ex Output:
6/91


Ex Input:
Suppose -4*g + 296 = -2*b, 4*b = -5*g + 3*b + 377. What is the greatest common factor of g and 25?

Ex Output:
25


Ex Input:
Evaluate 16*(-5)/10 - (0 + -1).

Ex Output:

-7