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这道题的简便运算怎么做,要有详细过程哦
1个回答
2017-06-13 · 知道合伙人教育行家
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5/19x1/6+1/19x13/6
=5/19x1/6+13/19x1/6
=(5/19+13/19)x1/6
=18/19x1/6
=3/19
=5/19x1/6+13/19x1/6
=(5/19+13/19)x1/6
=18/19x1/6
=3/19
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