分数简便运算数学题
简便计算：分数喔
十三分之七×二十九分之六＋十三分之六×二十九分之二十二
人气：411 ℃ 时间：2020-06-04 13:04:58
解答
7/13×6/29＋6/13×22/29
＝（6/13＋1/13）×6/29＋6/13×22/29
＝6/13×（6/29＋22/29）＋1/13×6/29
＝6/13×（1－1/29）＋1/13×6/29
＝6/13×1－6/13×1/29＋（1/13×6）×（6/29÷6）
＝6/13
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