0.23=100分之23
4.6=4又5分之3小星走到学校要用0.2小时,小军走到学校要用6分之1小时,谁用的时间短?小星:0.2小时=5分之1小时小军:6分之1小时5分之1小时 > 6分之1小时 (分子相同,分母越大分数就越小)所以,小军用的时间短。
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