All shortened solutions: 

(1:4)   [CC10] -> 40/10 
(1:6)   [CC2][xC4] -> 48/2 and [CC5][Cx4] -> 30/20 
(1:9)   [CC5] -> 45/5 
(1:16)  [CC2][Cx9] -> 32/18 
(1:21)  [CC2][Cx4] -> 42/8 
(1:24)  [CC2] -> 48/2 
(2:3)   [xC16] -> 48/2 and [CC10] -> 30/20 
(2:7)   [CC2][xC9] -> 36/14 
(2:8)   [CC5] -> 40/10 
(2:12)  [xC4] -> 48/2 
(2:17)  [C2][Cx4] -> 34/16 
(2:18)  [Cx16] -> 32/18 
(2:23)  [CC2] -> 46/4 
(2:32)  [Cx9] -> 32/18 
(2:42)  [Cx4] -> 42/8 
(3:7)   [CC5] -> 35/15 
(3:13)  [CC2][Cx4] -> 26/24 
(3:22)  [CC2] -> 44/6 
(3:23)  [Cx9] -> 27/23 
(3:38)  [Cx4] -> 38/12 
(4:6)   [CC5] -> 30/20 
(4:9)   [CC2][Cx4] -> 32/18 
(4:14)  [Cx9] -> 36/14 
(4:21)  [CC2] -> 42/8 
(4:34)  [Cx4] -> 34/16 
(5:20)  [CC2] -> 40/10 
(5:30)  [Cx4] -> 30/20 
(6:11)  [xC4] -> 44/6 
(6:19)  [CC2] -> 38/12 
(6:26)  [Cx4] -> 26/24 
(7:18)  [CC2] -> 36/14 
(7:22)  [Cx4] -> 28/22 
(8:17)  [CC2] -> 34/16 
(8:18)  [Cx4] -> 32/18 
(9:16)  [CC2] -> 32/18 
(10:15) [CC2] -> 30/20 
(11:14) [CC2] -> 28/22 
(12:13) [CC2] -> 26/24