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二十五分之二四乘四分之三加二十五分十三乘四分之一简算
人气:157 ℃ 时间:2020-04-21 07:32:55
解答
=24/25*3/4+13/25*1/4
=(24*3)/(25*4)+13/(25*4)
=(72+13)/(25*4)
=85/100=0.85
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