11/17+17/19+20/17+40/19+37/17
来源:学生作业帮助网 编辑:六六作业网 时间:2024/11/28 13:57:58
11/17+17/19+20/17+40/19+37/1711/17+17/19+20/17+40/19+37/1711/17+17/19+20/17+40/19+37/1711/17+17/19+2
11/17+17/19+20/17+40/19+37/17
11/17+17/19+20/17+40/19+37/17
11/17+17/19+20/17+40/19+37/17
11/17+17/19+20/17+40/19+37/17
=(11/17+20/17+37/17)+(17/19+40/19)
=(11+20+37)/17+(17+40)/19
=68/17+57/19
=68/17+57/19
=4+3
=7