Question

−2 1/2÷6

Answer 1

Does your question look like this?
\[-2\frac{ 1 }{ 2}\div6\]

Answer 2

This would be a solution as fraction:
\[-2\frac{ 1 }{ 2}:6=-\frac{ 5 }{ 2 }*\frac{ 1 }{ 6 }=-\frac{ 5 }{ 12 }\]