3|8×2|5+2|7×0.375=

来源:学生作业帮助网 编辑:作业帮 时间:2024/05/12 19:47:19

3|8×2|5+2|7×0.375=
3|8×2|5+2|7×0.375=

3|8×2|5+2|7×0.375=
=3/8*2/5+2/7*3/8
=3/8*(2/5+2/7)
=3/8*24/35
=9/35