[tex]\frac{2}{4} + \frac{2}{4} = \frac{4}{4} =1\\[/tex]
[tex]\frac{2}{4} +\frac{3}{4} = \frac{5}{4} =1\frac{1}{4}[/tex]
[tex]\frac{2}{4} + \frac{4}{4} = \frac{6}{4} = 1\frac{2}{4}[/tex]
[tex]\frac{2}{4} + \frac{5}{4} = \frac{7}{4} = 1\frac{3}{4}[/tex]
