tentukan hasil dari A.⅜-¼ B.7/30+3/20-4 ¼ C.7 ⅓-6⅞ D.4/9+11/18+5/27-4⅔ tulis carnya secepatnya

A) 3/8 - 1/4
   = 3/8 - 2/8
   = 1/8

B) 7/30 + 3/20 - 4 1/4
   = 7/30 + 3/20 - 17/4
   = 14/60 + 9/60 - 255/60
   = 25/60 - 255/60
   = - 230/60
   = - 3 50/60
   = - 3 5/6

C) 7 1/3 - 6 7/8
   = 7  8/24 - 6 21/24
   = 6 32/24 - 6 21/24
   = 11/24

D) 4/9 + 11/18 + 5/27 - 4 2/3
   = 24/54 + 33/54 + 10/54 - 4 36/54
   = 67/54 - 252/54
   = - 185/54
   = - 3 23/54

a. 3/8 + 2/8 = 5/8
b 14/60 + 9/60 - 240/60
= 23/60 - 240/60 = -217/60
c. 1 + 1/3 - 7/8 = 1 + 8/24 -21/24 = 24/24 + -13/24
= 11/24