\[5,375 - 1\frac{3}{19} =\]
\[= 5\ \frac{375}{1000} - 1\frac{3}{19} =\]
\[= 5\frac{3^{\backslash 19}}{8} - 1\frac{3^{\backslash 8}}{19} =\]
\[= 5\frac{57}{152} - 1\frac{24}{152} = 4\frac{33}{152}\]