Răspuns :
[tex]3 \frac{4}{5} - 1 \frac{3}{10} - \frac{4}{15} \\ \frac{19}{5} - \frac{13}{10} - \frac{4}{15} \\ \frac{67}{30} [/tex]
[tex]3 \frac{4}{5} - 1 \frac{3}{10} - \frac{4}{15} \\ \frac{19}{5} - \frac{13}{10} - \frac{4}{15} \\ \frac{67}{30} [/tex]