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).

Evaluate 6/(-28)*1*(-16)/12.
2/7

Four letters picked without replacement from {f: 8, g: 8, q: 2}. What is prob of sequence gggf?
28/765

Let b be (3/(-3) + 8)/1. Let h = 11 - b. What is the units digit of (0 + -6)/((-4)/h)?

6