[tex]a) \frac{3}{4} \times \frac{5}{6} = \frac{3 \times 5}{4 \times 6} = { \frac{15}{24} }^{(3} = \frac{5}{8} [/tex]
[tex]b) \frac{7}{3} \times \frac{9}{28} = \frac{7 \times 9}{3 \times 28} = { \frac{63}{84} }^{(21} = \frac{3}{4} [/tex]
[tex]c) \frac{4}{11} \times \frac{33}{32} = \frac{4 \times 33}{11 \times 32} = { \frac{132}{352} }^{(44} = \frac{3}{8} [/tex]
[tex]d) \frac{3}{5} \times \frac{25}{27} = \frac{3 \times 25}{5 \times 27} = { \frac{75}{135} }^{(15} = \frac{5}{9} [/tex]
