Odpowiedź:
[tex]5\frac{1}{4}-2\frac{3}{4}=4\frac{5}{4}-2\frac{3}{4}=2\frac{2}{4}=2\frac{1}{2}\\\\5\frac{3}{12}-1\frac{9}{12}=4\frac{15}{12}-1\frac{9}{12}=3\frac{6}{12}=3\frac{1}{2}\\\\10\frac{3}{8}-8\frac{8}{10}=10\frac{3}{8}-8\frac{4}{5}=10\frac{15}{40}-8\frac{32}{40}=9\frac{55}{40}-8\frac{32}{40}=1\frac{23}{40}[/tex]
