[tex]10\frac{3}{4}[/tex]
Really, this is simple. take [tex]2\frac{3}{4}[/tex] and [tex]3\frac{1}{4}[/tex] and then add them together. [tex]\frac{3}{4}[/tex] + [tex]\frac{1}{4}[/tex] = 1. 1+3+2=6. then add the [tex]4\frac{3}{4}[/tex] to the 6 and you get [tex]10\frac{3}{4}[/tex]