6.8/2.31+2.31/4.2-2.31怎么简算
答案:1 悬赏:70 手机版
解决时间 2021-12-01 00:48
- 提问者网友:皆是孤独
- 2021-11-30 11:05
6.8/2.31+2.31/4.2-2.31怎么简算
最佳答案
- 五星知识达人网友:污到你湿
- 2021-11-30 11:18
解:6.8/2.31+2.31/4.2-2.31
=6.8/2.31+2.31( 1/4.2-1)
=6.8/2.31+2.31( -3.2 /4.2 )
=6.8/2.31 -2.31* 3.2 /4.2
=(6.8*4.2-2.31*2.31*3.2)/(2.31 *4.2 )
=(28.56-17.07552)/9.702
=11.48448/9.702
=1.183723
=6.8/2.31+2.31( 1/4.2-1)
=6.8/2.31+2.31( -3.2 /4.2 )
=6.8/2.31 -2.31* 3.2 /4.2
=(6.8*4.2-2.31*2.31*3.2)/(2.31 *4.2 )
=(28.56-17.07552)/9.702
=11.48448/9.702
=1.183723
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