[tex]\frac{\frac{\frac{33}{5}}{1375}-3.8}{\frac{1}{2}}=\frac{\frac{33}{6875}-3.8}{\frac{1}{2}}=\left(\frac{3}{625}-3.8\right)\cdot \:2=2\left(-3.7952\right)=-3.7952\cdot \:2=-7.5904[/tex]