Răspuns:
[tex] \frac{12}{5} \times \frac{47}{72} = \frac{1}{5} \times \frac{47}{6} = \frac{47}{30} [/tex]
[tex] \frac{20}{3} \times \frac{11}{120} = \frac{1}{3} \times \frac{11}{6} = \frac{11}{18} [/tex]
[tex] \frac{10}{7} \times \frac{29}{60} = \frac{1}{7} \times \frac{29}{6} = \frac{29}{42} [/tex]
[tex] \frac{14}{9} \times \frac{69}{224} = \frac{1}{9} \times \frac{69}{16} = \frac{1}{3} \times \frac{23}{16} = \frac{23}{48} [/tex]