0.32= 2.8×0.3= 1-= 1.4+0.16=
2.5-1.3= 9÷5= 2.5×4÷2.5×4= 2.8+7.2×0=
+ = + = 1- = - =
+ = - = + = - =
8÷9和4÷9
5÷11和5÷7
1 3
= = = 1-0.89= =
= = 0.95- = = =
6÷0.05=
2.4÷48= 81÷ = 7.48-(1.6+2.48)= ( )×48=
- = 1- = + = + - + =
- = 0.2- =
①带分数比假分数大;
②当分数的分母小于分子时,这个分数才能化成带分数;
③和相比较,大小相同,分数单位不同;
④要使能化成整数,a必须是6的倍数。