\sqrt[3]{3\frac{3}{8}}-(-3)^2:1\frac{1}{2}
\sqrt[3]{3\frac{3}{8}}-(-3)^2:1\frac{1}{2}=
=\sqrt[3]{\frac{27}{8}}-9:\frac{3}{2}=
=\frac{3}{2}-9*\frac{2}{3}=
=1\frac{1}{2}-6=-4\frac{1}{2}