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: What is prob of picking 3 t and 1 b when four letters picked without replacement from {t: 5, b: 3}?

Answer: 3/7


Question: In base 9, what is -356 + -2?

Answer: -358


Question: Suppose 0*m - 4 = -2*m. Suppose p - 2*j = -1, -6*j + 7 = m*p - j. What is the remainder when 49 is divided by p*19 + 2/(-1)?

Answer:
15