[tex]3\frac{2}{5} =\frac{15-2}{5} =\frac{13}{5}[/tex]
Salut!
l) 3 - 2/5
[tex]3 - \frac{2}{5} = \frac{3}{1} - \frac{2}{5} = \frac{15}{5} - \frac{2}{5} = \frac{13}{5} [/tex]
3/1 => amplificăm cu 5 => 15/5
