Hej!
[tex]\frac{1}{3}+\frac{1}{3}+\frac{1}{3}=\frac{3}{3}=1\\\\\frac{1}{4}+\frac{1}{4}+\frac{1}{4}+\frac{1}{4}=\frac{4}{4}=1\\\\\frac{2}{3}+\frac{1}{3}=\frac{3}{3}=1\\\\\frac{2}{4}+\frac{2}{4}=\frac{4}{4}=1\\\\\frac{2}{5}+\frac{3}{5}=\frac{5}{5}=1[/tex]
Pozdrawiam! - Julka
