0.4*0.25/0.4*0.75 简便运算

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0.4*0.25/0.4*0.75简便运算0.4*0.25/0.4*0.75简便运算0.4*0.25/0.4*0.75简便运算分子:0.4*0.25分母:0.4*0.75=0.4*0.25*3直接约分

0.4*0.25/0.4*0.75 简便运算
0.4*0.25/0.4*0.75 简便运算

0.4*0.25/0.4*0.75 简便运算
分子:0.4*0.25
分母:0.4*0.75=0.4*0.25*3
直接约分,
0.4*0.25/0.4*0.75
=0.4*0.25/0.4*0.25 *3
=1/3

=0.4/0.4*0.25*0.75
=0.2*0.75+0.05*0.75
=0.15+0.0375
=0.1875