[tex]\frac{15}{10}[/tex] (prin 5)→ [tex]\frac{3}{2}[/tex]
[tex]\frac{3}{21}[/tex] (prin 3)→ [tex]\frac{1}{7}[/tex]
[tex]\frac{4}{10}[/tex] (prin 2)→ [tex]\frac{2}{5}[/tex]
[tex]\frac{42}{30}[/tex] (prin 6)→ [tex]\frac{7}{5}[/tex]
[tex]\frac{105}{135}[/tex] (prin 15)→ [tex]\frac{7}{9}[/tex]
[tex]\frac{90}{72}[/tex] (prin 18)→[tex]\frac{5}{4}[/tex]
Sper să te ajute! ^_^