$$\frac{ 3 }{ 9 } + \frac{ 4 }{ 7 } + \frac{ 3 }{ 8 }$$
$\frac{215}{168}\approx 1.279761905$
$$\frac{1}{3}+\frac{4}{7}+\frac{3}{8}$$
$$\frac{7}{21}+\frac{12}{21}+\frac{3}{8}$$
$$\frac{7+12}{21}+\frac{3}{8}$$
$$\frac{19}{21}+\frac{3}{8}$$
$$\frac{152}{168}+\frac{63}{168}$$
$$\frac{152+63}{168}$$
$$\frac{215}{168}$$
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$\frac{5 \cdot 43}{2 ^ {3} \cdot 3 \cdot 7} = 1\frac{47}{168} = 1.2797619047619047$
