〔1/3)*(1/3)+(2/30)*(2/30)+(3/300)*(3/300)+(4/3000)*(4/3000)

来源:学生作业帮助网 编辑:作业帮 时间:2024/11/28 03:36:38
〔1/3)*(1/3)+(2/30)*(2/30)+(3/300)*(3/300)+(4/3000)*(4/3000)
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〔1/3)*(1/3)+(2/30)*(2/30)+(3/300)*(3/300)+(4/3000)*(4/3000)
〔1/3)*(1/3)+(2/30)*(2/30)+(3/300)*(3/300)+(4/3000)*(4/3000)

〔1/3)*(1/3)+(2/30)*(2/30)+(3/300)*(3/300)+(4/3000)*(4/3000)
通分啊
(1000/3000)*(1000/3000)+(200/3000)*(200/3000)+(30/3000)*(30/3000)+(4/3000)*(4/3000)
=(1000000+40000+900+16)/9000000
=1040916/9000000
=212/1833
=0.1157

(1000/3000)*(1000/3000)+(200/3000)*(200/3000)+(30/3000)*(30/3000)+(4/3000)*(4/3000)=(1000000+40000+900+16)/9000000=1040916/9000000

计算器呀,,,,

0.1157