Obliczenia:
[tex]2\frac{1}{4} + 3\frac{3}{4} = 6[/tex]
[tex]6 : 7 = \frac{6}{7}[/tex]
[tex]\frac{6}{7} + 2\frac{5}{7} = 3\frac{4}{7}[/tex]
[tex]3\frac{4}{7} - 3 = \frac{4}{7}[/tex]
[tex]\frac{4}{7} * 7 = \frac{28}{7} = 4[/tex]
[tex]4 - \frac{1}{3} = 3\frac{2}{3}[/tex]
[tex]3\frac{2}{3} + 1\frac{2}{3} = 5\frac{1}{3}[/tex]
[tex]5\frac{1}{3} - \frac{1}{3} = 5[/tex]
[tex]5 - 2\frac{3}{4} = 2\frac{1}{4}[/tex]
