Question

d) 75° 23' 10" + 16° 30'​

Answer 1

$75^\circ 23\textrm{'}10\textrm{"} + 16^\circ 30\textrm{'}\\=(75+16)^\circ + (23+30)\textrm{'}+ 10\textrm{"}\\=91^\circ + 53\textrm{'}+ 10\textrm{"}$