常用的∏倍及分数、小数和百分数的互化表

一、常用的 π 倍1π3。145π15.79π28。2636π113。042π6.286π18.8410π31。449π153。863π9.427π21.9816π50。2464π200。964π12.568π25.1225π78。581π254。34二、常用的分数、小数及百分数的互化=0。5=50％ =0.25=25％ =0。75=75％=0.2=20% =0。4=40% =0。6=60％ =0.8=80%=0.125=12。5% =0。375=37。5% =0.625=62。5% =0。875=87。5%=0。1=10% =0。0625=6。25％ =0。05=5％ =0.04=4％=0.02=2％ =0.01=1%