$\frac{ 2 }{ 3 }\div\frac{ 5 }{ 6 }$
To divide by a fraction, multiply by the reciprocal of that fraction$\frac{ 2 }{ 3 } \times \frac{ 6 }{ 5 }$
Cancel out the greatest common factor $3$$2 \times \frac{ 2 }{ 5 }$
Calculate the product$\begin{align*}&\frac{ 4 }{ 5 } \\&0.8\end{align*}$