[tex]a) - \frac{9}{5} * \frac{-75}{27}=- \frac{1}{1} * -\frac{15}{3}= 5 \\ b) \frac{17}{3} * \frac{12}{34} *- \frac{9}{2}= \frac{1}{1} * \frac{4}{2} * - \frac{9}{2} = -9 \\ c) -\frac{3}{8} * \frac{6}{16}= -\frac{3}{4} * \frac{3}{16} = -\frac{9}{64} \\ d) \frac{12}{49} * \frac{96}{-4} = \frac{3}{49} * -\frac{96}{1}= -\frac{288}{49}[/tex]
