( 2/9+ (1/3 в квадрате)+три целых 1/3 ) : 11/17
(2/9 + (1/3)^2 + 3 1/3) : 11/17 = (2/9 + 1/9 + 10/3) : 11/17 = (3/9 + 10/3) : 11/17 = (1/3 + 10/3) : 11/17 = 11/3 : 11/17 = 11/3 * 17/11 = 17/3 = 5 2/3