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).

Example Input: Two letters picked without replacement from {l: 1, i: 3, o: 1}. Give prob of picking 1 i and 1 l.
Example Output: 3/10

Example Input: What is 130798 to the power of 1/6, to the nearest integer?
Example Output: 7

Example Input: Solve 0 = 4*f - 0*t - 4*t - 4, -4*f + t = -13 for f.
Example Output:
4