( )/( ) =12 :20 =( ):2 =( )% =( )小数

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( )/( ) =12 :20 =( ):2 =( )% =( )小数
( )/( ) =12 :20 =( ):2 =( )% =( )小数

( )/( ) =12 :20 =( ):2 =( )% =( )小数
(6 )/( 10) =12 :20 =( 1、2):2 =( 60)% =( 0·6)小数
其实第一个( )/( )有很多种填法例如(9 )/( 15)或( 3)/( 5)
等等

(12)/(20) =12 :20 =(1.2):2 =(60)% =(0.6)

3 5 12/5 60 0.6

12 20 1.2 60 0.6