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有理数加法简便运算:格式如下
(+17/3)+(-3.36)+【(+7.36)+(+14/17)】
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人气:499 ℃ 时间:2020-05-26 01:39:07
解答
=17/3-3.36+7.36+14/17
=17/3+14/17+(-3.36+7.36)
=289/51+42/51+4
=331/51+4
=4 331/51
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