来自台毅民的问题
计算:1/6+1/12+1/20+1/30+1/42+1/56+1/72(提示:1/6=1/2X3,1/12=1/3X4,1/20=/14X5)上面提示最后一个打错了，下面是正确的计算:1/6+1/12+1/20+1/30+1/42+1/56+1/72(提示:1/6=1/2X3,1/12=1/3X4,1/20=1/4X5)
计算:1/6+1/12+1/20+1/30+1/42+1/56+1/72(提示:1/6=1/2X3,1/12=1/3X4,1/20=/14X5)
上面提示最后一个打错了，下面是正确的
计算:
1/6+1/12+1/20+1/30+1/42+1/56+1/72(提示:1/6=1/2X3,1/12=1/3X4,1/20=1/4X5)
1回答
2020-05-14 16:34