Ответ:1 = 4/4; 1 = 8/8; 1 = 2/2; 2/8 = 1/4; 1 = 3/3.1/3 = 2/6; 1/3 = 3/9; 2/6 = 3/9; 2/3 = 6/9; 2/3 = 4/6.