tìm các chữ số a b c biết 0,abc+a,bc+ab,c=13,653

`\overline{0,abc} + \overline{a,bc} + \overline{ab,c} = 13,653`

`\overline{0,abc} + \overline{0,abc} xx 10 + \overline{0,abc} xx 100 = 13,653`

`\overline{0,abc} xx (1+10+100) = 13,653`

`\overline{0,abc} xx 111 = 13,653`

`\overline{0,abc} = 13,653 : 111`

`\overline{0,abc} = 0,123`

Vậy `a =1 ; b=2 ; c = 3`

`#dtkc`