﹛2又2/3﹣[(1.5×2又2/3﹚÷1/6﹣1又1/7]﹜÷8/3

来源:学生作业帮助网 编辑:作业帮 时间:2024/05/10 08:25:25
﹛2又2/3﹣[(1.5×2又2/3﹚÷1/6﹣1又1/7]﹜÷8/3

﹛2又2/3﹣[(1.5×2又2/3﹚÷1/6﹣1又1/7]﹜÷8/3
﹛2又2/3﹣[(1.5×2又2/3﹚÷1/6﹣1又1/7]﹜÷8/3

﹛2又2/3﹣[(1.5×2又2/3﹚÷1/6﹣1又1/7]﹜÷8/3
﹛2又2/3﹣[(1.5×2又2/3﹚÷1/6﹣1又1/7]﹜÷8/3
=﹛2又2/3﹣[(3/2×8/3﹚*6﹣8/7]﹜*3/8
=﹛8/3﹣[(3/2×8/3﹚*6﹣8/7]﹜*3/8
=﹛8/3﹣[4*6﹣8/7]﹜*3/8
=﹛8/3﹣[24﹣8/7]﹜*3/8
=﹛1﹣[9﹣3/7]﹜
=﹛1﹣[60/7]﹜
=-53/7
= -7又4/7

原式=[8/3-(3/2*(8/3)*6-8/7)]*3/8=(8/3-24+8/7)*3/8=1-9+3/7=-7又4/7