2. Original formula =108+0.53x60'-6512' 28 "
= 108 3 1′+0.8x 60″-65 12′28 "
= 108 3 1′48″-65 12′28″
=43 19′20″
3. Original formula =12060 ′ 24 ″-7036 ′
= 120 59′84″-70 36″
=50 59′48″
4. Original formula =127 92' 46 "-23 40'18"
= 104 52′28″
5. Original formula = (94 60 ′ 24 ″-2515 ′) x3.
= 69 45’24”x3
=207 135′72″
=209 16′ 12″
6. Original formula = [60-21-(1103/1800)]/2
=[39 -( 1 103/ 1800) ]/2
= 19.5 -( 1 103/3600)
≈ 19. 1936