15abc0 : abc = 1010
150000 + abc0 = 1010 x abc
150000 + 10 x abc = 1010 x abc
150000 = 1000 x abc ( Cùng bớt cả 2 vế đi 10 x abc )
150000 : 1000 = abc
150 = abc
abc = 150
Vậy a = 1 ; b = 5 ; c = 0
\(\overline{15abc0}:\overline{abc}=1010\)
\(150000+\overline{abc}.10:\overline{abc}=1010\)
\(1010.\overline{abc}=150000+\overline{abc}.10\)
\(1000.\overline{abc}=150000\)
\(\Rightarrow\overline{abc}=150\)