爸爸买了9千克苹果和6千克梨,写出苹果与两种水果总质量的比,并求出比值.
爸爸买了9千克苹果和6千克梨,写出苹果与两种水果总质量的比,并求出比值.
数学人气:954 ℃时间:2019-09-09 17:47:48
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3:2 2分之3
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