分数小数互化的口诀巧记

常见的分数小数互化: 1/2=0.5=50%,1/4=0.25=25%,3/4=0.75=75%,1/5=0.2=20%,2/5=0.4=40%,3/5=0.6=60%,4/5=0.8=80%,1/8=0.125=12.5%,3/8=0.375=37.5%,5/8=0.625=62.5%,7/8=0.875=87.5%，1/20=0.05=5%,1/25=0.04=4%1/50=0.02=2%...