2:(8/3x)=1 4/9:4 1/3 срочно
2: 8/3х = 2/1 * 3х/8 = 3х/4 1 4/9 : 4 1/3 = 13/9 : 13/3 = 13/9 * 3/13 = 1/3 3х/4 = 1/3 х = 1/3 : 3/4 х = 1/3 * 4/3 х = 4/9