what is 19 1/6 - 4 1/2 - 4 1/4

What is 19 1/6 - 4 1/2 - 4 1/4 ?

$$\begin{array}{rcl}
19 \frac{1} {6} - 4 \frac{1} {2} - 4 \frac{1} {4} \\
&=& 19+ \frac{1} {6} - 4 -\frac{1} {2} - 4 -\frac{1} {4} \\\\
&=& 19-4-4 +\frac{1} {6} -\frac{1} {2} -\frac{1} {4} \\\\
&=& 11 +\frac{1} {6} -\frac{1} {2} *\frac{3}{3} -\frac{1} {4} \\\\

&=& 11 +\frac{1-3} {6} -\frac{1} {4} \\\\

&=& 11 -\frac{2} {6} -\frac{1} {4} \\\\
&=& 11 -\frac{1} {3} -\frac{1} {4} \\ \\
&=& 11 -(\frac{1} {3} + \frac{1} {4}) \\ \\
&=& 11 -(\frac{1} {3}*\frac{4}{4} + \frac{1} {4}*\frac{3}{3} ) \\ \\
&=& 11 -\frac{7} {12}\\ \\
&=& 10+1 -\frac{7} {12}\\ \\
&=& 10+\frac{12}{12} -\frac{7} {12}\\ \\
&=& 10 +\frac{12-7} {12}\\ \\
&=& 10 +\frac{5} {12}\\ \\
&=& 10 \frac{5} {12}\\ \\
\end{array}$$

use the site calc on the home page

enter like this      

(19+ 1/6) - (4 +1/2) - (4 +1/4)