$\left( 6+4+3 \right)+\left( \frac{ 1 }{ 3 }+\frac{ 3 }{ 4 }+\frac{ 7 }{ 12 } \right)$
Calculate the sum of the positive numbers$13+\left( \frac{ 1 }{ 3 }+\frac{ 3 }{ 4 }+\frac{ 7 }{ 12 } \right)$
Calculate the sum$13+\frac{ 5 }{ 3 }$
Convert the improper fraction into a mixed number$13+1 \frac{ 2 }{ 3 }$
Write the mixed number as a sum of the whole number and the fractional part$13+1+\frac{ 2 }{ 3 }$
Add the numbers$14+\frac{ 2 }{ 3 }$
Write the sum of the whole number and the fraction as a mixed number$\begin{align*}&14 \frac{ 2 }{ 3 } \\&\begin{array} { l }\frac{ 44 }{ 3 },& 14.\overset{ \cdot }{ 6 } \end{array}\end{align*}$