Six construction workers that work at the same rate can build a house in 1.5 days.  How long does it take 15 construction workers, working at the same rate, to finish building a house?  Express your answer as a fraction in lowest terms.
<|im_start|>system
You are a helpful assistant.<|im_end|>
<|im_start|>user
Six construction workers that work at the same rate can build a house in 1.5 days.  How long does it take 15 construction workers, working at the same rate, to finish building a house?  Express your answer as a fraction in lowest terms.
Please reason step by step, and put your final answer within \boxed{{}}.<|im_end|>
<|im_start|>assistant

user
\frac{3}{5}
Six construction workers that work at the same rate can build a house in 1.5 days.  How long does it take 15 construction workers, working at the same rate, to finish building a house?  Express your answer as a fraction in lowest terms.
train