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]: Calculate prob of sequence nesl when four letters picked without replacement from {a: 1, v: 2, e: 2, n: 1, l: 1, s: 1}.
[A]: 1/840


[Q]: What is the smallest common multiple of (-4)/12*(-20 - -2) and 4?
[A]: 12


[Q]: Let t(g) = -4*g**2 - g**3 + 2*g**3 + 1 - 3*g - 2*g**3. Suppose -o - 2*k = -6, 0*o - 2*k + 14 = -o. Calculate the remainder when 38 is divided by t(o).
[A]:
12