
2个回答
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利用加法的结合律,先提取公因数
3.25*(3/5)+5.75/(5/3)+60%
=3.25*(3/5)+5.75*(3/5)+0.6
=(3/5)*(3.25+5.75)+0.6
=(3/5)*9+0.6
=0.6*9+0.6
=0.6*(9+1)=0.6*10=6
3.25*(3/5)+5.75/(5/3)+60%
=3.25*(3/5)+5.75*(3/5)+0.6
=(3/5)*(3.25+5.75)+0.6
=(3/5)*9+0.6
=0.6*9+0.6
=0.6*(9+1)=0.6*10=6
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