b) = ([tex]\frac{-2+3}{36} * (-\frac{5}{6}) = \frac{1}{36} * (-\frac{5}{6} = -\frac{1*5}{36*6} = \frac{5}{216}[/tex]
c)=[tex](\frac{-7+33}{39}) * ( \frac{-3}{2}) = \frac{26}{39} * ( \frac{-3}{2}) = -\frac{26*3}{39*2} =-\frac{78}{78} =-1[/tex]
d) = [tex]\frac{-6+16}{84} * \frac{11}{5} = \frac{10}{84} * \frac{11}{5} = \frac{10*11}{84*5} = \frac{110}{420} = \frac{11}{42}[/tex]
