$b){39}^o{25}^{{}^{\prime }}{34}^{{}^{\prime \prime }}+{23}^o{17}^{{}^{\prime }}{47}^{{}^{\prime \prime }}={62}^o{42}^{{}^{\prime }}{81}^{{}^{\prime \prime }}={62}^o{43}^{{}^{\prime }}{21}^{{}^{\prime \prime }}$  

 

$c){18}^o{57}^{{}^{\prime }}{28}^{{}^{\prime \prime }}+{46}^o{49}^{{}^{\prime }}{37}^{{}^{\prime \prime }}={64}^o{106}^{{}^{\prime }}{65}^{{}^{\prime \prime }}={64}^o{107}^{{}^{\prime }}{5}^{{}^{\prime \prime }}={65}^o{47}^{{}^{\prime }}{5}^{{}^{\prime \prime }}$  

 

$d){37}^o{20}^{{}^{\prime }}{14}^{{}^{\prime \prime }}-{25}^o{13}^{{}^{\prime }}{34}^{{}^{\prime \prime }}={37}^{{}^{\prime }}{19}^{{}^{\prime }}{74}^{{}^{\prime \prime }}-{25}^o{13}^{{}^{\prime }}{34}^{{}^{\prime \prime }}={12}^{o}6{}^{\prime }{40}^{{}^{\prime \prime }}$  

 

$e){76}^o{35}^{{}^{\prime }}{43}^{{}^{\prime \prime }}-{46}^o{53}^{{}^{\prime }}{47}^{{}^{\prime \prime }}={75}^o{95}^{{}^{\prime }}{43}^{{}^{\prime \prime }}-{46}^o{53}^{{}^{\prime }}{47}^{{}^{\prime \prime }}={75}^o{94}^{{}^{\prime }}{103}^{{}^{\prime \prime }}-{46}^o{53}^{{}^{\prime }}{47}^{{}^{\prime \prime }}={29}^o{41}^{{}^{\prime }}{56}^{{}^{\prime \prime }}$