tolong jawab pliss PR penting

8½ + 5¾ + 4⅔
= 8 6/12 + 5 9/12 + 4 8/12
= 17 23/12
= 18 11/12
taksiran = 19 kg

selisih A dan B
= 8½ - 5¾
= 8²/4 - 5¾
= 2¾ kg