Question

4 c) Efectuati
mai repede​

Answer 1

$3 \frac{4}{5} - 1 \frac{3}{10} - \frac{4}{15} \\ \\ = \frac{3 \times 5 + 4}{5} - \frac{1 \times 10 + 3}{10} - \frac{4}{15} \\ \\ = {}^{ {}^{6)} } \frac{19}{5} - {}^{ {}^{3)} } \frac{13}{10} - {}^{ {}^{2)} } \frac{4}{15} \\ \\ = \frac{114 - 39 - 8}{30} \\ \\ = \frac{67}{30} \\ \\ = 2 \frac{7}{30}$