Respuesta :

Leader
[tex]1 +\frac{1}{4} +2\fra{2}{4} =\frac{1}{4} +\frac{2}{4} +1+2 =\frac{1+2}{4} + 3= 3+ \frac{3}{4}=\boxed{\bf{3\frac{3}{4}}}[/tex]

The asnwer is 3 3/4