(1.2+2.3+3.4+4.5+5.6+6.7)/(12+23+34+45+56+67)
2020-10-04 218次 反馈错误 加入收藏 正确率 : 100%
题目内容:
(1.2+2.3+3.4+4.5+5.6+6.7)/(12+23+34+45+56+67)
优质解答
(1.2+2.3+3.4+4.5+5.6+6.7)/(12+23+34+45+56+67)
=(1.2+2.3+3.4+4.5+5.6+6.7)/10(1.2+2.3+3.4+4.5+5.6+6.7)
=1/10
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