9) (2 13/48 + 2 5/12) : 3 3/4 − 9 3/4 : 12

\(2\frac{13}{48}+2\frac{5}{12}=\frac{109}{48}+\frac{116}{48}=\frac{225}{48}=\frac{75}{16}\).

\(\frac{75}{16}:3\frac{3}{4}=\frac{75}{16}\cdot\frac{4}{15}=\frac{5}{4}\), а \(9\frac{3}{4}:12=\frac{39}{4}:12=\frac{13}{16}\).

\(\frac{5}{4}-\frac{13}{16}=\frac{7}{16}\).

Ответ: \(\frac{7}{16}\).