计算：5*6*7*8*9分之1*2*3*4*5+5*6*7*8*9aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa_数学解答

计算：5*6*7*8*9分之1*2*3*4*5+5*6*7*8*9
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人气：244 ℃　时间：2020-03-28 12:24:26

解答

(1*2*3*4*5+5*6*7*8*9)/(5*6*7*8*9)
=(1+7*2*9)*(4*5*6)/(5*6*7*8*9)
=127/126