五分之三乘四分之一加五分之二除以四简便计算
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五分之三乘四分之一加五分之二除以四
=(3/5)*(1/4)+(2/5)/4
=(3/5)*(1/4)+(2/5)*(1/4)
=(3/5+2/5)*(1/4)
=1/4
=(3/5)*(1/4)+(2/5)/4
=(3/5)*(1/4)+(2/5)*(1/4)
=(3/5+2/5)*(1/4)
=1/4
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