l3之7x29之6十13之6x29之22简便计算
答案:1 悬赏:40 手机版
解决时间 2021-12-04 11:19
- 提问者网友：嘚啵嘚啵
- 2021-12-03 16:40
l3之7x29之6十13之6x29之22简便计算
最佳答案
- 五星知识达人网友：人间朝暮
- 2021-12-03 17:24
l3之7x29之6十13之6x29之22
=7/13×6/29+6/13×22/29
=7/13×6/29+22/13×6/29
=（7/13+22/13）×6/29
=29/13×6/29
=6/13
=7/13×6/29+6/13×22/29
=7/13×6/29+22/13×6/29
=（7/13+22/13）×6/29
=29/13×6/29
=6/13
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