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:
Divide -352 by -4.

Ex Output:
88


Ex Input:
What is 0.9978494 kilometers in centimeters?

Ex Output:
99784.94


Ex Input:
Calculate prob of sequence ooer when four letters picked without replacement from {r: 4, o: 8, e: 2}.

Ex Output:

8/429