小马在计算110×（□+18）时，算成了110×□+18，两次结果相差980980．

Question

小马在计算(1)/(10)×（□+(1)/(8)）时，算成了(1)/(10)×□+(1)/(8)，两次结果相差

(9)/(80)

(9)/(80)

．

Answer 1

(1)/(10)×（□+(1)/(8)）
=(1)/(10)×□+(1)/(10)×(1)/(8)
=(1)/(10)×□+(1)/(80)，
(1)/(10)×□+(1)/(8)-(1)/(10)×□+(1)/(80)
=(1)/(8)-(1)/(80)
=(9)/(80)；
答：两次结果相差(9)/(80)．
故答案为：(9)/(80)．