Obliczenia:

$5\frac{1}{2}+3\frac{1}{2}=8\frac{2}{2}=9$

$5\frac{1}{2}-3\frac{1}{2}=2$

$6+1\frac{3}{5}=7\frac{3}{5}$

$6-1\frac{3}{5}=5\frac{5}{5}-1\frac{3}{5}=4\frac{2}{5}$

$13\frac{1}{3}+9\frac{2}{3}=22\frac{3}{3}=23$

$13\frac{1}{3}-9\frac{2}{3}=12\frac{4}{3}-9\frac{2}{3}=3\frac{2}{3}$