$$\frac{ 3 }{ 7 } + \frac{ 6 }{ 2 } + \frac{ 8 }{ 3 } + \frac{ 5 }{ 5 } =$$
$\frac{149}{21}\approx 7.095238095$
$$\frac{3}{7}+\frac{6}{2}+\frac{8}{3}+1$$
$$\frac{3}{7}+3+\frac{8}{3}+1$$
$$\frac{3}{7}+\frac{21}{7}+\frac{8}{3}+1$$
$$\frac{3+21}{7}+\frac{8}{3}+1$$
$$\frac{24}{7}+\frac{8}{3}+1$$
$$\frac{72}{21}+\frac{56}{21}+1$$
$$\frac{72+56}{21}+1$$
$$\frac{128}{21}+1$$
$$\frac{128}{21}+\frac{21}{21}$$
$$\frac{128+21}{21}$$
$$\frac{149}{21}$$
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$\frac{149}{3 \cdot 7} = 7\frac{2}{21} = 7.095238095238095$
