简便计算,
来源:学生作业帮助网 编辑:作业帮 时间:2024/07/28 06:22:26
![简便计算,](/uploads/image/z/7785514-10-4.jpg?t=%E7%AE%80%E4%BE%BF%E8%AE%A1%E7%AE%97%2C)
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简便计算,
简便计算,
简便计算,
1/12×5/13-1/4×1/13
=5/12×1/13-1/4×1/13
=1/13×(5/12-3/12)
=1/13×2/12=1/78