9/2×5/3 7/6×9/7 8/5×15/4 20/9×21/59/2×5/3 7/6×9/7 8/5×15/420/9×21/5 5/6×3/5 25/7×14/15 11/3×2/1 50/19×19/10

来源:学生作业帮助网 编辑:作业帮 时间:2024/05/27 01:24:12

9/2×5/3 7/6×9/7 8/5×15/4 20/9×21/5
9/2×5/3 7/6×9/7 8/5×15/4
20/9×21/5 5/6×3/5 25/7×14/15
11/3×2/1 50/19×19/10

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