Ответ:

  1. Преобразуем смешанные числа:

    \[4\frac{1}{2}=\frac{9}{2},\quad 5\frac{1}{3}=\frac{16}{3},\quad 10\frac{2}{3}=\frac{32}{3}.\]

    \[\frac{9}{2}\cdot\frac{8}{9}-\frac{16}{3}:\frac{32}{3}=4-\frac{16}{3}\cdot\frac{3}{32}=4-\frac{1}{2}=\frac{7}{2}.\]

  2. \[1\frac{11}{24}+\frac{13}{36}=\frac{35}{24}+\frac{13}{36}=\frac{131}{72},\quad 1,44=\frac{36}{25},\quad 0,5625=\frac{9}{16}.\]

    \[\frac{131}{72}\cdot\frac{36}{25}-\frac{8}{15}\cdot\frac{9}{16}=\frac{131}{50}-\frac{3}{10}=\frac{58}{25}=2,32.\]

Ответ: 1) \(\frac{7}{2}\); 2) \(2,32\).