2 1/2 + 1 1/3 решите плис
2 1/2 + 1 1/3=5/2+4/3=15/6+8/6=23/6=3 5/6
2×1/2 + 1×1/3 = 5/2+4/3 =15/6+8/6= 23/6 =3×5/6