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).

Input: Consider Input: What is next in 30, 29, 26, 21, 14, 5?

Output: -6


Input: Consider Input: Two letters picked without replacement from {u: 2, x: 8}. Give prob of picking 1 x and 1 u.

Output: 16/45


Input: Consider Input: Let y be 957/777 + (-2)/7. Let w = y + -2011/444. Calculate the common denominator of w and 2/(-1) - 165/18.


Output: 12