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 Input:
Convert 39.12191 tonnes to milligrams.

Ex Output:
39121910000


Ex Input:
Let w = -31583/220 - -1550/11. What is the common denominator of -97/10 and w?

Ex Output:
20


Ex Input:
Four letters picked without replacement from {q: 9, i: 2, e: 8}. What is prob of sequence eqii?

Ex Output:

1/646