求1+6/19+12/61+20/141+30/271+42/463的答案是多少.
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求1+6/19+12/61+20/141+30/271+42/463的答案是多少.
![求1+6/19+12/61+20/141+30/271+42/463的答案是多少.](/uploads/image/z/16437344-32-4.jpg?t=%E6%B1%821%2B6%2F19%2B12%2F61%2B20%2F141%2B30%2F271%2B42%2F463%E7%9A%84%E7%AD%94%E6%A1%88%E6%98%AF%E5%A4%9A%E5%B0%91.)
1+6/19+12/61+20/141+30/271+42/463
=(1+3+5+7+9+11)+(6/1+12/1+30/1+42/1)
=36+(2/1-3/1+3/1-4/1+4/1-5/1+5/1-6/1+6/1-7/1)
=36+(2/1-7/1)
=36+14/5
=36又14/5
=(1+3+5+7+9+11)+(6/1+12/1+30/1+42/1)
=36+(2/1-3/1+3/1-4/1+4/1-5/1+5/1-6/1+6/1-7/1)
=36+(2/1-7/1)
=36+14/5
=36又14/5