а) 2(14/15:2/3) = 2(14/15 3/2) = 2(42/30) = 2*7/5 = 14/5
б) 12/11:3/411/24 = 12/11 4/3 11/24 = 44/33 11/24 = 4/3 * 1/2 = 2/3
в) 1/2 2/3 3/4 5/4 = 1/1 1/2 1/1 5/2 = 5/4
а) 2(14/15:2/3) = 2(14/15 3/2) = 2(42/30) = 2*7/5 = 14/5
б) 12/11:3/411/24 = 12/11 4/3 11/24 = 44/33 11/24 = 4/3 * 1/2 = 2/3
в) 1/2 2/3 3/4 5/4 = 1/1 1/2 1/1 5/2 = 5/4