一、
12.5%= 1/8; 37.5%= 3/8;
62.5%=5/8; 87.5%=7/8
二、
85% =85/100=17/20;
32%=32/100=8/25
135%=135/100=27/20
0.1%=0.1/100=1/1000
1025%=1025/100=41/4
605%=605/100=121/20
三、
7/4=1.75=176%
9/8=1.125=112.5%
5/6≈0.833=83.3%
9/5=1.8=180%
1/3≈0.333=33.3%
2/3≈0.667=66.7%