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: Suppose 32975 = -0*r + 5*r. Suppose 5*k - i = 3*i - 6596, 5*i - r = 5*k. Let o = k + 7877/6. Find the common denominator of o and -39/10.

A: 30
****
Q: Three letters picked without replacement from oxccztxcccocottcxxto. Give prob of picking 2 o and 1 t.

A: 2/95
****
Q: Let p(w) = -w**3 + 4*w**2 - 3. Let k be p(3). Let z be 1/(k/56)*12. Find the common denominator of (-214)/z - 4/(-14) and -139/6.

A:
24
****