(3又1/3+5又2/4+7又3/5+...+57又28/30)/(1又2/3+2又3/4+3又4/5+...28又29/30)-1
来源:学生作业帮助网 编辑:作业帮 时间:2024/07/06 16:49:15
![(3又1/3+5又2/4+7又3/5+...+57又28/30)/(1又2/3+2又3/4+3又4/5+...28又29/30)-1](/uploads/image/z/616530-66-0.jpg?t=%283%E5%8F%881%2F3%2B5%E5%8F%882%2F4%2B7%E5%8F%883%2F5%2B...%2B57%E5%8F%8828%2F30%29%2F%281%E5%8F%882%2F3%2B2%E5%8F%883%2F4%2B3%E5%8F%884%2F5%2B...28%E5%8F%8829%2F30%29-1)
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(3又1/3+5又2/4+7又3/5+...+57又28/30)/(1又2/3+2又3/4+3又4/5+...28又29/30)-1
(3又1/3+5又2/4+7又3/5+...+57又28/30)/(1又2/3+2又3/4+3又4/5+...28又29/30)-1
(3又1/3+5又2/4+7又3/5+...+57又28/30)/(1又2/3+2又3/4+3又4/5+...28又29/30)-1
(3又1/3+5又2/4+7又3/5+...+57又28/30)/(1又2/3+2又3/4+3又4/5+...28又29/30)-1
=(2又4/3+4又6/4+6又8/5+...+56又58/30)/(1又2/3+2又3/4+3又4/5+...28又29/30)-1
=2-1
=1
=(24+1/3+1/2+3/5+2/3)÷(14-1/3-1/4-1/5-1/6)
=(25+11/10)÷(14-19/20)
=261/10÷261/20
=2