___ ab . 101 = … ____ abc . 7 . 11 .13 = … 29/09/2021 Bởi Josie ___ ab . 101 = … ____ abc . 7 . 11 .13 = …
___ _____
ab . 101 = abab
____ ___ ________
abc . 7 . 11 . 13 = ab . 1001 = abcabc
`overline{ab}×101=overline{abab}`
`overline{abc}.7.11.13=overline{abcabc}`