Ответ:

Решение:

  1. \( 9 \frac{1}{4} - 8 \frac{2}{3} - 3 \frac{1}{2} - 10 \frac{5}{6} \cdot \frac{4}{7} = 9 \frac{1}{4} - 8 \frac{2}{3} - 3 \frac{1}{2} - \frac{65}{6} \cdot \frac{4}{7} = 9 \frac{1}{4} - 8 \frac{2}{3} - 3 \frac{1}{2} - \frac{260}{42} = 9 \frac{1}{4} - 8 \frac{2}{3} - 3 \frac{1}{2} - \frac{130}{21} \)

  2. \( 1 \frac{1}{22} - 3 \frac{1}{3} - (2 \frac{1}{6} + 3 \frac{5}{6} - 7 \frac{1}{23}) \cdot \frac{3}{5} = \frac{23}{22} - \frac{10}{3} - (\frac{13}{6} + \frac{23}{6} - \frac{161}{23}) \cdot \frac{3}{5} = \frac{23}{22} - \frac{10}{3} - (\frac{36}{6} - \frac{161}{23}) \cdot \frac{3}{5} = \frac{23}{22} - \frac{10}{3} - (6 - \frac{161}{23}) \cdot \frac{3}{5} = \frac{23}{22} - \frac{10}{3} - (\frac{138-161}{23}) \cdot \frac{3}{5} = \frac{23}{22} - \frac{10}{3} - (-\frac{23}{23}) \cdot \frac{3}{5} = \frac{23}{22} - \frac{10}{3} - (-1) \cdot \frac{3}{5} = \frac{23}{22} - \frac{10}{3} + \frac{3}{5} \)

  3. \( 3 \frac{1}{4} + 2 \frac{1}{6} \) : \( 2 \frac{1}{3} - \frac{2}{5} \cdot \frac{2}{9} = \frac{13}{4} + \frac{13}{6} \) : \( \frac{7}{3} \) - \( \frac{4}{45} \) = \( \frac{39+26}{12} \) : \( \frac{7}{3} \) - \( \frac{4}{45} \) = \( \frac{65}{12} \) : \( \frac{7}{3} \) - \( \frac{4}{45} \) = \( \frac{65}{12} \cdot \frac{3}{7} \) - \( \frac{4}{45} \) = \( \frac{65}{28} \) - \( \frac{4}{45} \) = \( \frac{2925-112}{1260} \) = \( \frac{2813}{1260} \)

  4. \( 5,07 - \frac{1}{20} - 23,4 \) : \( \frac{13}{50} \) + \( 0,074 - \frac{1}{2} \) = \( 5,07 - 0,05 - 23,4 \) : \( \frac{13}{50} \) + \( 0,074 - 0,5 \) = \( 5,02 - 23,4 \) : \( \frac{13}{50} \) - \( 0,426 \) = \( -18,38 \) : \( \frac{13}{50} \) - \( 0,426 \) = \( -18,38 \cdot \frac{50}{13} \) - \( 0,426 \) = \( -70,69 \) - \( 0,426 \) = \( -71,116 \)

  5. \( (-1,2 + 4,32) : (-1,8) \) : \( (-0,001) \cdot (-0,3) \) = \( 3,12 : (-1,8) \) : \( 0,0003 \) = \( -1,733... \) : \( 0,0003 \) = \( -5777,77... \)

  6. \( \frac{10}{21} - \frac{25}{28} \) : \( \frac{11}{14} + \frac{24}{35} \) = \( \frac{40-75}{84} \) : \( \frac{55+48}{70} \) = \( -\frac{35}{84} \) : \( \frac{103}{70} \) = \( -\frac{5}{12} \) : \( \frac{103}{70} \) = \( -\frac{5}{12} \cdot \frac{70}{103} \) = \( -\frac{350}{1236} \) = \( -\frac{175}{618} \)

Ответ: 1) Не вычислено; 2) Не вычислено; 3) \( \frac{2813}{1260} \); 4) \( -71,116 \); 5) \( -5777,77... \); 6) \( -\frac{175}{618} \).