69°12'16-38°29'30=

1° = 60' (menit)
1' = 60" (detik)
69° = 69 x 60 = 4.140' x 60 =248.400"
12' = 12 x 60 = 720"
16"
248.800+720+16=249.536"

38° = 38 x 3600 = 136.800"
29' = 29 x 60 = 1.740
30"
136.800+1.740+30=138.570"
249.536 - 138.570 = 110.966"= 30°49'26"