4÷(5 )=0.4÷( 0.5)=( 8)÷10=(80 )%
4÷(5 )=0.4÷(0.5 )=(8 )÷10=(80 )% 4÷(8 )=0.4÷(0.8 )=(5 )÷10=(50 )% 4÷(20 )=0.4÷(2 )=(2)÷10=(20)% 很多,可以任意添,只要遵循分数的基本性质就行
4÷( 5)=0.4÷(0.5 )=(8 )÷10=(80 )%
4/1000=0.4/100=0.04/10=0.4%
4÷(10)=0.4÷(1)=(40)%