You have the following expression:
[tex]2\frac{1}{6}-1\frac{3}{6}[/tex]In order to calculate the previous difference, first express the mixed number as normal fraction, just as follow:
[tex]\begin{gathered} 2\frac{1}{6}=\frac{2}{1}+\frac{1}{6}=\frac{12+1}{6}=\frac{13}{6} \\ 1\frac{3}{6}=\frac{1}{1}+\frac{3}{6}=\frac{6+3}{6}=\frac{9}{6} \end{gathered}[/tex]Next, subtract the previous fractions:
[tex]\frac{13}{6}-\frac{9}{6}=\frac{13-9}{6}=\frac{4}{6}[/tex]Hence, the subtraction of the given fraction is equal to 4/6
