5/ 10= 1/2
8/ 16= 1/2
6/9=2/3
15/ 10=3/2
7/2 1= 1/3
9/ 12=3/4
17/5 1= 1/3
9/8 1= 1/9
25/50= 1/2
13/39= 1/3
Comprehensive score:
1/2+ 1/3=5/6
1/3+ 1/4=7/ 12
1/4+ 1/5=9/20
1/5+ 1/6= 1 1/30
1/6+ 1/7= 13/42
1/7+ 1/8= 15/56
1/8+ 1/9= 17/72
1/9+ 1/ 10= 19/90
1/ 10+ 1/20=3/20
1/20+ 1/30=5/60= 1/ 12