2x⅔+15 dan -4x⅔+5 beserta caranya

2x⅔+15=1 3/3x⅔+14 3/3
=6/3x⅔+45/3
=12/9+45/3=12/9+135/9
=147/9=16 3/9=16 1/3
-4x⅔+5=-3 3/3x⅔+4 3/3
=-12/3x⅔+15/3
=-24/9+15/3
=-24/9+45/9
=21/9
maaf yah klw salah:)