1) 8/11 1 целая 8/11 = 8/11 (11/11 + 8/11) = 8/11 * 19/11 = 152/121.
2) 21 1 целая 3/7 = 21 (7/7 + 3/7) = 21 * 10/7 = 30.
3) 2 целых 2/3 2 целых 3/16 = (2 + 2/3) (2 + 3/16) = (6/3 + 2/3) (32/16 + 3/16) = 8/3 35/16 = 280/48 = 35/6.
1) 8/11 1 целая 8/11 = 8/11 (11/11 + 8/11) = 8/11 * 19/11 = 152/121.
2) 21 1 целая 3/7 = 21 (7/7 + 3/7) = 21 * 10/7 = 30.
3) 2 целых 2/3 2 целых 3/16 = (2 + 2/3) (2 + 3/16) = (6/3 + 2/3) (32/16 + 3/16) = 8/3 35/16 = 280/48 = 35/6.