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).
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Question: Three letters picked without replacement from {a: 8, u: 11, g: 1}. What is prob of picking 1 a and 2 u?

Answer: 22/57


Question: Calculate 5 - (0 + (3 - 1)).

Answer: 3


Question: Calculate prob of picking 1 n and 2 a when three letters picked without replacement from {v: 3, a: 4, n: 7}.

Answer:
3/26