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).

Q: Four letters picked without replacement from vvvvvv. Give prob of picking 4 v.

A: 1
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Q: Evaluate (-16)/(-5) - 4/1.

A: -4/5
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Q: Calculate prob of sequence igml when four letters picked without replacement from {g: 2, n: 1, l: 2, m: 1, i: 2}.

A:
1/210
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