1/3,2/5,4/9,(),16/23,32/33
A.6/13
B.8/15
C.10/17
D.12/19
:1/2,1,9/8,1()A.23/16B.5/32C.25/32D.7/16
1/2,1,9/8,1,()A.7/16B.5/32C.23/16D.25/32
1/4,2/7,2/5,8/13,1() A.9/16 B.3 C.32/19 D.28/17
8/9,-2/3,1/2,-3/8,() A.9/32 B.5/72 C.8/32 D.9/23
1/2,1,9/8,1() A.23/16B.5/32C.25/32D.7/16
1/2,1,9/8,1,() A.7/16B.5/32C.23/16D.25/32