分数与小数的转化50
题
快递公司问题件快递公司问题件货款处理关于圆的周长面积重点题型关于解方程组的题及答案关于南海问题
(有答案)分数与小数互化50题1、小数转化成分数:0.3= 0.25= 0.45= 0.89=1.06= 2.5= 0.375= 4.5=0.27= 1.52= 0.5= 0.08=3.28= 10.06= 3.2= 0.005=0.45= 2.6= 0.785= 3.45=8.7= 0.43= 0.17= 1.6=2、分数转化成分数:(不能化成有限小数的保留两位小数)================10= 5= 201= 4=≈≈≈≈≈≈≈≈答案:一、0.3=0.25=1/4 0.45=9/20 0.89=89/1001.06=53/50 2.5=5/2 0.375=3/8 4.5=9/20.27=27/100 1.52=38/25 0.5=1/2 0.08=2/253.28=82/25 10.06=10 3.2=16/5 0.005=1/200 0.45=9/20 2.6=13/5 0.785=157/200 3.45=69/208.7=87/10 0.43=43/100 0.17=17/100 1.6=8/5二、=0.5 =0.25 =0.75 =0.2= 0.4 = 0.6 = 0.8 =0.125=0.375 =0.625 = 0.875 =0.1=0.3 = 0.7 =0.9 =0.0510=10.75 5=5.625 201= 201.65 4=4.42≈ 0.33 ≈0.67 ≈ 0.17 ≈0.83≈ 0.14 ≈ 0.29 ≈ 0.11 ≈0.09