问题描述：
初一“希望杯”奥数题.
Given a decimal formula 1/a-1/b=1/988,and a b are both three - digit intengers.Find all the possible values for a and b.
Given a decimal formula 1/a-1/b=1/988,and a b are both three - digit intengers.Find all the possible values for a and b.
问题解答：
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