If Michael rolls three fair dice, what is the probability that he will roll at least two 1's? Express your answer as a common fraction.
<|im_start|>system
You are a helpful assistant.<|im_end|>
<|im_start|>user
If Michael rolls three fair dice, what is the probability that he will roll at least two 1's? Express your answer as a common fraction.
Please reason step by step, and put your final answer within \boxed{{}}.<|im_end|>
<|im_start|>assistant

user
\frac{2}{27}
If Michael rolls three fair dice, what is the probability that he will roll at least two 1's? Express your answer as a common fraction.
train