Ответ:92,5 : 81−1,5 = 3⁵ : 3−6 = 3¹¹ = 177147.7−1/3 · 71/6 · 491/2 = 7−1/3+1/6+1 = 75/6.253/2 + 25⁰ + 25−3/2 = 125 + 1 + 1/125 = 15751/125.