137*135/136+135*1/136这道式子有简便算法吗?
137*135/136+135*1/136这道式子有简便算法吗?
日期:2021-07-12 01:32:55 人气:1
137*135/136+135*1/136
=137*135/136+135/136
=135/136*(137+1)
=135/136*(136+2)
=135/136*136+135/136*2
=135+135/68
=136又67/68
=137*135/136+135/136
=135/136*(137+1)
=135/136*(136+2)
=135/136*136+135/136*2
=135+135/68
=136又67/68