$$\frac{ 10 }{ 5 } + \frac{ 3 }{ 5 } + \frac{ 11 }{ 4 } - \frac{ 1 }{ 9 } - \frac{ 3 }{ 4 } + \frac{ 2 }{ 5 }$$
$\frac{44}{9}\approx 4.888888889$
$$\frac{10+3}{5}+\frac{11}{4}-\frac{1}{9}-\frac{3}{4}+\frac{2}{5}$$
$$\frac{13}{5}+\frac{11}{4}-\frac{1}{9}-\frac{3}{4}+\frac{2}{5}$$
$$\frac{52}{20}+\frac{55}{20}-\frac{1}{9}-\frac{3}{4}+\frac{2}{5}$$
$$\frac{52+55}{20}-\frac{1}{9}-\frac{3}{4}+\frac{2}{5}$$
$$\frac{107}{20}-\frac{1}{9}-\frac{3}{4}+\frac{2}{5}$$
$$\frac{963}{180}-\frac{20}{180}-\frac{3}{4}+\frac{2}{5}$$
$$\frac{963-20}{180}-\frac{3}{4}+\frac{2}{5}$$
$$\frac{943}{180}-\frac{3}{4}+\frac{2}{5}$$
$$\frac{943}{180}-\frac{135}{180}+\frac{2}{5}$$
$$\frac{943-135}{180}+\frac{2}{5}$$
$$\frac{808}{180}+\frac{2}{5}$$
$$\frac{202}{45}+\frac{2}{5}$$
$$\frac{202}{45}+\frac{18}{45}$$
$$\frac{202+18}{45}$$
$$\frac{220}{45}$$
$$\frac{44}{9}$$
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$\frac{2 ^ {2} \cdot 11}{3 ^ {2}} = 4\frac{8}{9} = 4.888888888888889$
