please help 40 points

Answer:
10 1/3
Step-by-step explanation:
add
9 12/9
simplify
10 3/9 = 10 1/3
Answer:
[tex]10\frac{1}{3}[/tex]
Step-by-step explanation:
[tex]2\frac{5}{9}+7\frac{7}{9}[/tex]
[tex]2+7+\frac{5}{9}+\frac{7}{9}[/tex]
[tex]9+\frac{12}{9}[/tex]
[tex]9+\frac{9}{9}+\frac{3}{9}[/tex]
[tex]9+1+\frac{3}{9}[/tex]
[tex]10\frac{3}{9}[/tex]
[tex]10\frac{1}{3}[/tex]