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: What is prob of sequence yyy when three letters picked without replacement from eyeeeyyyeeeyyy?
Example Output: 5/52

Example Input: Convert 0.0206712 weeks to microseconds.
Example Output: 12501941760

Example Input: Suppose 5*l = l + 16. Suppose -5*n + 8 = l*b, 5*n - 5*b = 2*n - 10. Solve n = -2*j + j + 4 for j.
Example Output:
4