A.(1101.1100)2; B.(1100.1101)2; C.(1011.1011)2; D.(1011.1010)2.
A.(0.11001)2; B.(0.10011)2; C.(0.10010)2。
A.(0.1101)2; B.(0.1001)2; C.(0.0110)2; D.(0.01112)。