Шаг 1: Упростим числитель
\[15 - \frac{92}{3} = \frac{15 \cdot 3}{3} - \frac{92}{3} = \frac{45}{3} - \frac{92}{3} = \frac{45 - 92}{3} = \frac{-47}{3}\] \[\frac{-47}{3} : \frac{2}{3} = \frac{-47}{3} \cdot \frac{3}{2} = \frac{-47 \cdot 3}{3 \cdot 2} = \frac{-47}{2}\]Шаг 2: Упростим знаменатель
\[192 - 11\frac{7}{9} = 192 - \frac{11 \cdot 9 + 7}{9} = 192 - \frac{99 + 7}{9} = 192 - \frac{106}{9} = \frac{192 \cdot 9}{9} - \frac{106}{9} = \frac{1728 - 106}{9} = \frac{1622}{9}\] \[\frac{1622}{9} \cdot \frac{9}{71} = \frac{1622 \cdot 9}{9 \cdot 71} = \frac{1622}{71} = 22\frac{60}{71}\]Шаг 3: Разделим числитель на знаменатель
\[\frac{\frac{-47}{2}}{\frac{1622}{71}} = \frac{-47}{2} : \frac{1622}{71} = \frac{-47}{2} \cdot \frac{71}{1622} = \frac{-47 \cdot 71}{2 \cdot 1622} = \frac{-3337}{3244} = -1\frac{93}{3244}\]Ответ: -1\frac{93}{3244}