Hasil dari 18 5/12 – 11 3/8

18 5/12 – 11 3/8
= (18-11)+(5/12 – 3/8)
= 7+(10/24 – 9/24)
= 7+1/24
= 7 1/24

8 5/12 – 11 3/8 = 101/12 – 91/8
= 202/24 – 273/24
= -71/24
= -2 23/24