6分之7×(+3)+(-七分之二)×(=3)+七分之三×(-3)6分之7×(+3)+(-七分之二)×(+3)+七分之三×(-3)求简便不好意思、是7分之6×(+3)+(-七分之二)×(=3)+七分之三×(-3)
来源:学生作业帮助网 编辑:作业帮 时间:2024/07/06 20:39:41
![6分之7×(+3)+(-七分之二)×(=3)+七分之三×(-3)6分之7×(+3)+(-七分之二)×(+3)+七分之三×(-3)求简便不好意思、是7分之6×(+3)+(-七分之二)×(=3)+七分之三×(-3)](/uploads/image/z/15217869-21-9.jpg?t=6%E5%88%86%E4%B9%8B7%C3%97%EF%BC%88%2B3%EF%BC%89%2B%EF%BC%88-%E4%B8%83%E5%88%86%E4%B9%8B%E4%BA%8C%EF%BC%89%C3%97%EF%BC%88%3D3%EF%BC%89%2B%E4%B8%83%E5%88%86%E4%B9%8B%E4%B8%89%C3%97%EF%BC%88-3%EF%BC%896%E5%88%86%E4%B9%8B7%C3%97%EF%BC%88%2B3%EF%BC%89%2B%EF%BC%88-%E4%B8%83%E5%88%86%E4%B9%8B%E4%BA%8C%EF%BC%89%C3%97%EF%BC%88%2B3%EF%BC%89%2B%E4%B8%83%E5%88%86%E4%B9%8B%E4%B8%89%C3%97%EF%BC%88-3%EF%BC%89%E6%B1%82%E7%AE%80%E4%BE%BF%E4%B8%8D%E5%A5%BD%E6%84%8F%E6%80%9D%E3%80%81%E6%98%AF7%E5%88%86%E4%B9%8B6%C3%97%EF%BC%88%2B3%EF%BC%89%2B%EF%BC%88-%E4%B8%83%E5%88%86%E4%B9%8B%E4%BA%8C%EF%BC%89%C3%97%EF%BC%88%3D3%EF%BC%89%2B%E4%B8%83%E5%88%86%E4%B9%8B%E4%B8%89%C3%97%EF%BC%88-3%EF%BC%89)
6分之7×(+3)+(-七分之二)×(=3)+七分之三×(-3)6分之7×(+3)+(-七分之二)×(+3)+七分之三×(-3)求简便不好意思、是7分之6×(+3)+(-七分之二)×(=3)+七分之三×(-3)
6分之7×(+3)+(-七分之二)×(=3)+七分之三×(-3)
6分之7×(+3)+(-七分之二)×(+3)+七分之三×(-3)
求简便
不好意思、是
7分之6×(+3)+(-七分之二)×(=3)+七分之三×(-3)
6分之7×(+3)+(-七分之二)×(=3)+七分之三×(-3)6分之7×(+3)+(-七分之二)×(+3)+七分之三×(-3)求简便不好意思、是7分之6×(+3)+(-七分之二)×(=3)+七分之三×(-3)
原式
=7/6×3-2/7×3+3/7×(-3)
=7/6×3-2/7×3-3/7×3
=3×(7/6-2/7-3/7)
=3×19/42
=19/16
=7/2-6/7-9/7
=7/2-15/7
=19/14
7分之(6-2+3)*3=3,,望采纳喔
6分之7×(+3)+(-七分之二)×(-3)+七分之三×(-3)
=3×(7/6+2/7-3/7)
=3×43/42
=43/14
=3又1/14不好意思啊、是7分之6×(+3)+(-七分之二)×(=3)+七分之三×(-3)蟹蟹7分之6×(+3)+(-七分之二)×(-3)+七分之三×(-3)
=3×(6/7+2/7-3/7)
=3×5/7
=...
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6分之7×(+3)+(-七分之二)×(-3)+七分之三×(-3)
=3×(7/6+2/7-3/7)
=3×43/42
=43/14
=3又1/14
收起
7/6*3+(-2/7)*3+(-3)*3/7
=3*(-2/7-3/7+7/6)=3*(7/6-5/7)=3*(19/42)=19/14
7分之6×(+3)+(-七分之二)×(+3)+七分之三×(-3)
解原式=(6/7-2/7-3/7)×3
=(6/7-5/7)×3
=3/7 最后一个是把负号移到前面去了。别再抄错题了!