hey ma puteti ajuta pls?dau coroana pls

3
[tex] \frac{2}{5} ...... \frac{3}{10} \\ \\ \frac{4}{10} ...... \frac{3}{10} \\ \\ 4 > 3[/tex]
4.
4,32+0,5×1,2=4,32+0,6
=4,38