简便的方法题:4/9×338/15+16×1/9+2/9×4/15
答案:4 悬赏:80
解决时间 2021-11-25 19:03
- 提问者网友:唤魂
- 2021-11-25 07:45
简便的方法题:4/9×338/15+16×1/9+2/9×4/15
最佳答案
- 二级知识专家网友:摧毁过往
- 2021-11-25 08:16
简便的方法 题:4/9×338/15+16×1/9+2/9×4/15
4/9×338/15+16×1/9+2/9×4/15
=4/9×338/15+4×4/9+4/9×2/15
=4/9×(338/15+60/15+2/15)
=4/9×400/15
=320/27
4/9×338/15+16×1/9+2/9×4/15
=4/9×338/15+4×4/9+4/9×2/15
=4/9×(338/15+60/15+2/15)
=4/9×400/15
=320/27
全部回答
- 1楼网友:两不相欠
- 2021-11-25 10:39
4/9×338/15+16×1/9+2/9×4/15
=1/9*(4*338/15+16+8/15)
=1/9*8/15*(169+30+1)
=320/27
- 2楼网友:深街酒徒
- 2021-11-25 10:03
=(4*338+16*15+2*4)/(15*9)
=8*(169+30+1)/(15*9)
=1600/135
=320/27
- 3楼网友:飘零作归宿
- 2021-11-25 09:43
你好!
原式=4/9×338/15+2/9×4/15+16×1/9
=4/(9*15)(338+2)+16×1/9
=4*4*17/(9*3)+16*3/(9*3)
=16*20/27
=320/27
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