Question

3 intregi langa 4/5 - 1 intregi langa 3/10 - 4/15!
Va rog ajutati-ma. multumesc.

Answer 1

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