[tex]\underline\pink{\text{Add/Subtract}}[/tex]
[tex]9. \frac{2}{9} + \frac{1}{9} = \boxed{{ \: \frac{1}{3} \: }} \\[/tex]
[tex]10.5 \frac{3}{12} + \frac{6}{12} = \boxed{{ \: 5 \frac{3}{4} \: }} \\[/tex]
[tex]11.3 \frac{4}{18} + 2 \frac{2}{18} = \boxed{{ \: 5 \frac{1}{3} \: }} \\[/tex]
[tex]12.8 + \frac{7}{12} = \boxed{{ \: 8 \frac{1}{3} \: }} \\ [/tex]
[tex]13. \frac{9}{27} - \frac{8}{27} =\boxed{{ \: \frac{1}{27} \: }} \\ [/tex]
[tex]14.15 \frac{3}{5} - 7 = \boxed{{ \: 8 \frac{3}{5} \: }} \\ [/tex]
[tex]15.19 - \frac{3}{9} = \boxed{{ \: 18 \frac{2}{3} \: }}[/tex]
[tex]16.8 \frac{2}{5} - 2 \frac{4}{5} = \boxed{{ \: 5 \frac{3}{5} \: }} \\ [/tex]
