0.75=
12(   )
=
9
9
÷12=
75
75
%=
七五
七五
折.
分析:解決此題關(guān)鍵在于0.75,0.75可化成分數(shù)
75
100
,
75
100
的分子和分母同時除以25可化成最簡分數(shù)
3
4
,
3
4
的分子和分母同時乘4可化成
12
16
;
3
4
用分子3做被除數(shù),分母4做除數(shù)可轉(zhuǎn)化成除法算式3÷4,3÷4的被除數(shù)和除數(shù)同時乘3可化成9÷12;0.75的小數(shù)點向右移動兩位,同時添上百分號可化成75%;75%也就是七五折;由此進行轉(zhuǎn)化并填空.
解答:解:0.75=
12
16
=9÷12=75%=七五折;
故答案為:16,9,75,七五.
點評:此題考查小數(shù)、分數(shù)、百分數(shù)和除法之間的轉(zhuǎn)化,根據(jù)它們之間的關(guān)系和性質(zhì)進行轉(zhuǎn)化.
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