[tex] \frac{12}{9} . \frac{125}{100} =\frac{4}{3} . \frac{24}{20} =\frac{4}{3} . \frac{12}{10}=\frac{4}{3} . \frac{6}{5} =\frac{24}{15}=\frac{8}{5} [/tex]
[tex] \frac{6}{9} . \frac{75}{90} =\frac{2}{3} . \frac{5}{6} =\frac{10}{18} =\frac{5}{9} [/tex]
