[tex]\frac{(5\frac{1}{3} -4,5)*(\frac{1}{10}-1 )}{1\frac{1}{8} } =\frac{(5\frac{1}{3}-4\frac{1}{2})*(\frac{1}{10}-\frac{10}{10} ) }{\frac{9}{8} } =\frac{(5\frac{2}{6}-4\frac{3}{6} )*(-\frac{9}{10} )}{\frac{9}{8} } =\frac{(4\frac{8}{6}-4\frac{3}{6} )*(-\frac{9}{10} )}{\frac{9}{8} } =\frac{\frac{5}{6}*(-\frac{9}{10} ) }{\frac{9}{8} } =\frac{\frac{1}{2}*(-\frac{3}{2} ) }{\frac{9}{8} } =\frac{-\frac{3}{4} }{\frac{9}{8} } =-\frac{3}{4} *\frac{8}{9} =-\frac{1}{1}*\frac{2}{3}=-\frac{2}{3}[/tex]
