题文

把下面分数化成百分数． 例： 1 2 =0.5=50% 1 4 =______=______ 3 4 =______=______ 1 5 =______=______ 2 5 =______=______ 3 5 =______=______ 4 5 =______=______ 1 8 =______=______ 3 8 =______=______ 5 8 =______=______ 7 8 =______=______．

题型：解答题  难度：中档

答案

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%． 故答案为：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%．