1+2+3+……+95+96+95+……+3+2+1/888888乘8888888
问题描述:
1+2+3+……+95+96+95+……+3+2+1/888888乘8888888
答
(1+2+3+……+95+96+95+……+3+2+1)/(888888×8888888)
=(96×96)/(888888×8888888)
=(12×12)/(111111×1111111)
=144/123456654321
=48/41152218107