Răspuns :
7/23+19/46-5/23-7/46= Numitorul comun este 46
14/46+19/46-10/46-7/46=
33/46-10/46-7/46=
23/46-7/46=
16/46= se simplifica ⇒
8/23 R. 8/23
14/46+19/46-10/46-7/46=
33/46-10/46-7/46=
23/46-7/46=
16/46= se simplifica ⇒
8/23 R. 8/23