<|system|>
Simplify $\frac{15}{6}.$</s>.
<|user|>
Can you answer based on context?
<|assistant|>
Since $15$ and $6$ have a common factor of $3,$ we can simplify: $$\frac{15}{6}=\frac{3\cdot 5}{3\cdot 2}=\frac{\cancel{3}\cdot 5}{\cancel{3}\cdot 2}=\frac{5}{2}.$$