(2 9/16 + 5.54 : 6 8/35) : 6 1/9
(2 9/16 + 5.54 : 6 8/35) : 6 1/9 = (41/16 + 277/50 : 218/35) : 55/9 = (41/16 + 277/10 * 7/218) * 9/55 = (41/16 + 1939/2180) * 9/55 = 30101/87 720 * 9/55 = 270909/479600 Приблизительно равно 0.564864