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137*135/136+135*1/136这道式子有简便算法吗?
题目详情
137*135/136+135*1/136这道式子有简便算法吗?
▼优质解答
答案和解析
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
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