Question

Mình cần gấp bài này :-4/5+4/19-4/23/8/5-8/19+8/23

Answer 1

-4/5+4/19-4/23+8/5-8/19+8/23

=-4/5+8/5+4/19-8/19-4/23+8/23

=4/5+(-4/19)-4/23

=1748+(-460)-380/2185

=908/2185