[tex]corect \: \: este \: \: d[/tex]
[tex]rezolvare[/tex]
[tex] \frac{10}{6} = \frac{15}{9} = > 10 \times 9 = 15 \times 6 = > 90[/tex]
[tex] \frac{50}{30} + \frac{15}{9} = > 50 \times 9 = 30 \times 15 = > 450[/tex]
[tex] \frac{5}{9} = \frac{15}{9} = 15 \times 3 = > 45 [/tex]