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: Four letters picked without replacement from {l: 6, o: 3, f: 1, t: 1, c: 3, z: 1}. What is prob of sequence fccc?

Output: 1/5460


Input: Consider Input: In base 10, what is -151 - 26?

Output: -177


Input: Consider Input: Suppose -60 = 5*w - 160. Let p(j) = 1 + 4*j - j - 4*j. Let l be p(-2). Solve 5*i + 5*x + w = 0, 4*x + 8 = -l*i + 3*x for i.


Output: -2


