$$\frac{ 5 }{ 4 } + \frac{ 1 }{ 2 }$$
$\frac{7}{4}=1.75$
$$\frac{5}{4}+\frac{2}{4}$$
$$\frac{5+2}{4}$$
$$\frac{7}{4}$$
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$\frac{7}{2 ^ {2}} = 1\frac{3}{4} = 1.75$