[tex] \frac{9}{16} - ( \frac{3}{32} + \frac{5}{2} ) = \\ \frac{18}{32} -( \frac{3}{32} + \frac{80}{32} ) = \\ \frac{18}{32} - \frac{83}{32} = \\ =- \frac{ 65}{32} [/tex]
