7/10=70%,3/4=75%,5/8=62.5%,4/7=57.1%,9/11=81.2%.
45%=9/20, 18%=9/50, 125%=5/4, 4%=2/50, 3/500.
3/8=0.375=37.5%, 3.2/8=0.4=40%, 20/16=1.25=125%, 7/9=0.778=77.8%
7/10=70%,3/4=75%,5/8=62.5%,4/7=57.1%,9/11=81.2%.
45%=9/20, 18%=9/50, 125%=5/4, 4%=2/50, 3/500.
3/8=0.375=37.5%, 3.2/8=0.4=40%, 20/16=1.25=125%, 7/9=0.778=77.8%