[tex] \frac{ \frac{5}{8} + \frac{3}{4} }{ \frac{ - 2}{3} - \frac{5}{6} } \\ = \frac{ \frac{5 + 6}{8} }{ \frac{ - 4 - 5}{6 } } \\ = \frac{ \frac{11}{8} }{ \frac{ - 9}{6} } \\ = \frac{11}{8} \times \frac{ - 6}{9} = \frac{11}{8} \times \frac{ - 2}{3} = \frac{ - 11}{12} [/tex]
