[tex]what \: is \: the \: sum \: of \: \frac{7}{10} and \: \frac{3}{5} added \: to \: \frac{1}{2} \\ a.1 \frac{4}{5} \: \: \: b.1 \frac{4}{6} \: \: c.1 \frac{4}{7} \: \: \: d.1 \frac{4}{8} [/tex]
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