\frac{9}{10}
<|im_start|>system
You are a helpful assistant.<|im_end|>
<|im_start|>user
Simplify the fraction $\frac{27}{30}$.
Please reason step by step, and put your final answer within \boxed{{}}.<|im_end|>
<|im_start|>assistant

user
\frac{9}{10}
Simplify the fraction $\frac{27}{30}$.
train