Дроби 7-3/5+2 7/9равно

7 - [latex]7 - \frac{3}{5} + 2 \frac{7}{9} = 6 \frac{5}{5} - \frac{3}{5} + 2 \frac{7}{9} = 6 \frac{2}{5} + 2 \frac{7}{9} = 6 \frac{2*9}{5*9} + 2 \frac{7*5}{9*5} = 6 \frac{18}{45} + 2 \frac{35}{45} = 8 \frac{53}{45}[/latex][latex]= 9 \frac{8}{45} [/latex]