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佳佳和珍珍看同样的一本故事书,佳佳已看全书的7分之3,珍珍已看全书的8分之3,谁剩下的多?

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佳佳和珍珍看同样的一本故事书,佳佳已看全书的7分之3,珍珍已看全书的8分之3,谁剩下的多?
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答案和解析
Jiajia and Zhenzhen read the same story book.Jiajia has finished three sevenths of the whole book and Zhenzhen has finished three eighths of it, who has finished less?(Who has read less?