Răspuns:
[tex]\frac{7}{15}[/tex]
[tex]\frac{2}{5}[/tex]
Explicație pas cu pas:
[tex]\frac{8}{12} - \frac{2}{10} = \frac{2}{3} - \frac{1}{5} = \frac{2*5}{15} - \frac{1*3}{15} = \frac{10-3}{15} = \frac{7}{15}[/tex]
[tex]1 - \frac{3}{5} = \frac{5}{5} - \frac{3}{5} - \frac{5-3}{5} = \frac{2}{5}[/tex]
