`e)` `-788/789 > -789/789=-1` $\\$ `1-789/788 < -788/788=-1` $\\$ `Vậy` ` -788/789 > -789/788` $\\$ --------------------------------------------- $\\$ `g)` `1313/2727=13/27 . 101/101` $\\$ `Vì` `13/27 = 13/27 . 101/101 (a/b = a/b . n)` $\\$ `Vậy` `13/27 = 1313/2727`