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).
--------
Question: What is the remainder when 4 is divided by -4*(9/(-4))/3?

Answer: 1


Question: Convert 6.264243mg to tonnes.

Answer: 0.000000006264243


Question: Calculate prob of sequence yyyz when four letters picked without replacement from yyyyzzyzyzyzzyzy.

Answer:
21/260