What is the probability that when we roll 5 fair 6-sided dice, at most 4 of them will show a 1?
<|im_start|>system
You are a helpful assistant.<|im_end|>
<|im_start|>user
What is the probability that when we roll 5 fair 6-sided dice, at most 4 of them will show a 1?
Please reason step by step, and put your final answer within \boxed{{}}.<|im_end|>
<|im_start|>assistant

user
\frac{7775}{7776}
What is the probability that when we roll 5 fair 6-sided dice, at most 4 of them will show a 1?
train