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简便运算123123123...321321321...321
123123123...123/321321321...321
人气:247 ℃ 时间:2020-05-14 21:10:04
解答
=(123×1001001……001)÷(321×1001001……001)
=123÷321
=(3×41)÷(3×107)
=41/107
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