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).

[EX Q]: What is 5.711975 hours in minutes?
[EX A]: 342.7185

[EX Q]: ((-3)/9)/(7/(-3))
[EX A]: 1/7

[EX Q]: Four letters picked without replacement from {r: 3, n: 1, s: 3, o: 9, e: 2}. Give prob of picking 1 e, 1 s, 1 r, and 1 o.
[EX A]:
9/170