Разбираемся:
\[9\frac{9}{14} - 7\frac{10}{21} = 9 + \frac{9}{14} - 7 - \frac{10}{21} = 2 + \frac{27}{42} - \frac{20}{42} = 2 + \frac{7}{42} = 2\frac{1}{6}\]
\[2\frac{1}{6} \cdot 35 = \frac{13}{6} \cdot 35 = \frac{455}{6} = 75\frac{5}{6}\]
\[11\frac{2}{15} - 8\frac{3}{25} = 11 + \frac{2}{15} - 8 - \frac{3}{25} = 3 + \frac{10}{75} - \frac{9}{75} = 3 + \frac{1}{75} = 3\frac{1}{75}\]
\[3\frac{1}{75} \cdot 20 = \frac{226}{75} \cdot 20 = \frac{4520}{75} = \frac{904}{15} = 60\frac{4}{15}\]
\[\frac{9}{32} - \frac{9}{32} = 0\]
\[0 \cdot 16 = 0\]
\[75\frac{5}{6} + 60\frac{4}{15} + 0 = 75 + \frac{5}{6} + 60 + \frac{4}{15} = 135 + \frac{25}{30} + \frac{8}{30} = 135 + \frac{33}{30} = 135 + 1\frac{3}{30} = 136\frac{1}{10}\]
Ответ: 136\frac{1}{10}
Разбираемся:
\[(2\frac{1}{3})^2 = (\frac{7}{3})^2 = \frac{49}{9} = 5\frac{4}{9}\]
\[5\frac{4}{9} - 5\frac{4}{9} = 0\]
\[0 \cdot 8\frac{1}{4} = 0\]
\[0 \cdot 1\frac{3}{20} = 0\]
\[12 \cdot \frac{1}{3} = 4\]
\[3\frac{3}{4} \cdot 1\frac{1}{5} = \frac{15}{4} \cdot \frac{6}{5} = \frac{90}{20} = \frac{9}{2} = 4\frac{1}{2}\]
\[4 \cdot 4\frac{1}{2} = 4 \cdot \frac{9}{2} = \frac{36}{2} = 18\]
\[18 - \frac{4}{17} = \frac{306}{17} - \frac{4}{17} = \frac{302}{17} = 17\frac{13}{17}\]
\[17\frac{13}{17} \cdot 0 = 0\]
\[0 + \frac{49}{49} = 0 + 1 = 1\]
Ответ: 1