[tex]7 \frac{14}{15} + 2 \frac{1}{15} = 9 \frac{15}{15} = 10[/tex]

[tex]6 \frac{24}{27} + 12 \frac{13}{27} = 18 \frac{37}{27} = 19 \frac{10}{27} [/tex]

[tex]1 - \frac{12}{19} = \frac{19}{19} - \frac{12}{19} = \frac{7}{19} [/tex]

[tex]8 - 3 \frac{6}{15} = 7 \frac{15}{15} - 3 \frac{6}{15} = 4 \frac{9}{15} = 4 \frac{3}{5} [/tex]

[tex]12 - 11 \frac{6}{11} = 11 \frac{11}{11} - 11 \frac{6}{11} = \frac{5}{11} [/tex]

[tex]16 \frac{3}{13 } - 6 \frac{8}{13} = 15 \frac{16}{13} - 6 \frac{8}{13} = 9 \frac{8}{13} [/tex]

[tex]13 \frac{4}{9} - 2 \frac{8}{9} = 12 \frac{13}{9} - 2 \frac{8}{9} = 10 \frac{5}{9} [/tex]

[tex]10 \frac{7}{16} - 4 \frac{12}{16} = 9 \frac{23}{16} - 4 \frac{12}{16} = 5 \frac{11}{16} [/tex]

[tex]29 \frac{49}{53} - 8 \frac{49}{53} = 21[/tex]