[tex]\dfrac{3}{8}=3:8=0.375\\\\\dfrac{3}{8}=\dfrac{3\cdot125}{8\cdot125}=\dfrac{375}{1,000}=0.375\\----------------------------\\\\-9\dfrac{3}{6}=-\dfrac{9\cdot6+3}{6}=-\dfrac{57}{6}\\\\-9\dfrac{3}{6}=-9\dfrac{3:3}{6:3}=-9\dfrac{1}{2}=-[9+(1:2)]=-(9+0.5)=-9.5\\\\-9\dfrac{3}{6}=-9\dfrac{1}{2}=-9\dfrac{1\cdot5}{2\cdot5}=-9\dfrac{5}{10}=-9.5[/tex]
