Odpowiedź :
Hej!
[tex]3 - 2 \frac{1}{3} = 2 \frac{3}{3} - 2 \frac{1}{3} = \frac{2}{3} [/tex]
[tex]5 - 1 \frac{3}{5} = 4 \frac{5}{5} - 1 \frac{3}{5} = 3 \frac{2}{5} [/tex]
[tex]4 - 2 \frac{3}{4} = 3 \frac{4}{4} - 2 \frac{ 3}{4} = 1 \frac{1}{4} [/tex]
[tex]5 - 2 \frac{3}{4} = 4 \frac{4}{4} - 2 \frac{3}{4} = 2 \frac{1}{4} [/tex]