1、百分数和分数的互化,把下面的分数化成小数,除不尽的保留三位小数。,=0.75,=0.63,0.333,用分子除以分母.,分数,把下面各小数化成百分数 ,0.36=,1.7=,36%,170%,0.137=,小数 百分数,把小数点向右移动两位，同时在后面添上百分号.,13.7%,把下面各百分数化成小数,95%,0.8%,13.6%,135%,=0.95,=0.008,=0.136,=1.35,把小数点向左移动两位，同时去掉百分号。,35,0.6,60%,27,0.286,28.6%,把下面各分数化成百分数,23,75,4,3,12.5,125,8,1,练一练：,把27、40、65、145%、2.
2、6%改写成分数,1.看图填空。,5,3,60,5,2,40,7、下面每个大正方形都表示“1”，分别用分数、小数和百分数表示图中的涂色部分。,0.3,30%,0.25,25%,0.65,65%,百分数与分数的互化,1、判断题,5656% ( ) =0.4% ( )1=100% ( ) 9%= ( )0.7%=70 ( ) 315%=3.15( ),3、按由小到大的顺序 排列下列各数。,0.85,0.58,85.1%,百分数与分数的互化,A：一位小数,B：两位小数,C：三位小数,A,选一选,填表,0.3,150%,33.3%,0.333,0.6,0.5%,0.005,百分数与分数的互化,2、,60%,0.375,37.5%,
