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\(\because\) \( 60'' =1'\)
$$ \require{enclose} \begin{array}{rll} 6\phantom{00}&& \\[-3pt] 60 \enclose{longdiv}{375}\kern-.2ex \\[-3pt] \underline{360\phantom{}} && \\[-3pt] \phantom{0}15 && \\[-3pt] \end{array} $$
\(\therefore 375''=6'15''\) (Answer)