(-5/1+2/3-5/6+3/8)*(24*5/9-24*2/9+24*2/3)好的+++++分错了,是(-5/12+2/3-5/6+3/8)*(24*5/9-24*2/9+24*2/3)

来源:学生作业帮助网 编辑:作业帮 时间:2024/05/09 07:31:19
(-5/1+2/3-5/6+3/8)*(24*5/9-24*2/9+24*2/3)好的+++++分错了,是(-5/12+2/3-5/6+3/8)*(24*5/9-24*2/9+24*2/3)

(-5/1+2/3-5/6+3/8)*(24*5/9-24*2/9+24*2/3)好的+++++分错了,是(-5/12+2/3-5/6+3/8)*(24*5/9-24*2/9+24*2/3)
(-5/1+2/3-5/6+3/8)*(24*5/9-24*2/9+24*2/3)
好的+++++分
错了,是(-5/12+2/3-5/6+3/8)*(24*5/9-24*2/9+24*2/3)

(-5/1+2/3-5/6+3/8)*(24*5/9-24*2/9+24*2/3)好的+++++分错了,是(-5/12+2/3-5/6+3/8)*(24*5/9-24*2/9+24*2/3)
(24*5/9-24*2/9+24*2/3)
=24/9*(5-2+6)
=24/9*9
=24
原式=(-5/1+2/3-5/6+3/8)*24
=-5*24+2*24/3-5*24/6+3*24/8
=-120+16-20+9
=-140+25
=-115

(-5/1+2/3-5/6+3/8)*(24*5/9-24*2/9+24*2/3)
=(-5/1+2/3-5/6+3/8)*24*(5/9-2/9+2/3)
=(-5/1+2/3-5/6+3/8)*24
=-120+16-20+9
=-115