約分專項練習(xí).docx

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1、__________________________________________________約分的專項練習(xí)五年（）班姓名：一、求下面幾組數(shù)的最大公因數(shù)36和5425和3512和42153和51115和138二、約分，把下面的分?jǐn)?shù)化為最簡分?jǐn)?shù)258521423678168034516372三、先約分，再把下面的分?jǐn)?shù)化為帶分?jǐn)?shù)或整數(shù)19280722024151505012111100037510268450240四、單位換算（填整數(shù)或最簡分?jǐn)?shù)）。?8米＝(?????)分米?????2時＝(?????)分??1200厘米＝(?????)米??

2、??360秒＝(?????)分?6分米＝(?????)米????40厘米＝(?????)米???15秒＝(?????)分???????25分＝(?????)時?12分＝(?????)時???????4020千克＝(??????)噸?1.25升＝(?????????)毫升???????275厘米＝(????????)米?????2元4角＝(?????????)元????????1300米＝(?)千米?1千米50米＝(?)千米??????________________________________________________________

3、____________________________________________??200立方厘米＝(?)升?28時＝(?)日????????150平方厘米＝(?)平方分米__________________________________________________