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7/13x6/29+6/13x22/29简便计算
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7/13x6/29+6/13x22/29简便计算
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答案和解析
将6提出,
原式=6*(7/13×1/29+1/13×22/29)
=6*(1/13×7/29+1/13×22/29)
=6*(1/13)*(7/29+22/29)
=6*(1/13)*1
=6/13
原式=6*(7/13×1/29+1/13×22/29)
=6*(1/13×7/29+1/13×22/29)
=6*(1/13)*(7/29+22/29)
=6*(1/13)*1
=6/13
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