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:
Four letters picked without replacement from wqwgwwdwgggqqwgdw. Give prob of sequence qgqw.

Ex Output:
1/272


Ex Input:
Suppose -u = -7 + 1. What is the remainder when 17 is divided by u?

Ex Output:
5


Ex Input:
(-686)/(-196)*(-1)/(-21)

Ex Output:

1/6