1/6+12/1+20/1+30/1+42/1=
来源:学生作业帮助网 编辑:作业帮 时间:2024/07/14 21:18:02
![1/6+12/1+20/1+30/1+42/1=](/uploads/image/z/5137812-36-2.jpg?t=1%2F6%2B12%2F1%2B20%2F1%2B30%2F1%2B42%2F1%3D)
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MA,S22!Z@S}C<;#mCC$a 85
1/6+12/1+20/1+30/1+42/1=
1/6+12/1+20/1+30/1+42/1=
1/6+12/1+20/1+30/1+42/1=
是1/6+1/12+1/20+1/30+1/42吧
1/6+1/12+1/20+1/30+1/42=1/2 - 1/3 + 1/3 - 1/4 +1/4 -1/5 +1/5 -1/6 +1/6-1/7=1/2 -1/7=5/14
110