Help Me, Diminta Hasil Paling Sederhana

A) 1/5 : 1/2 = 1/5 x 2/1 = 2/5
b) 4/7 : 2/7 = 4/7 x 7/2 = 4/2 = 2
c) 3/5 : 2 = 3/5 x ½ = 3/10
d) 3⅓ : 2⅓ = 10/3 x 3/7 = 10/7 = 1 3/7
e) 12 1/7 : 2 4/5 = 85/7 x 5/14 = 425/98 = 4 33/98
f) (5/18 : 9/14) : 5/27
= (5/18 x 14/9) x 27/5
= 14/6
= 7/3
= 2⅓

g) 3 1/6 : ( 3⅛ : 5 )
= 3 1/6 : ( 25/8 x 1/5)
= 19/6 x 8/5
= 76/15
= 5 1/15

h) ( 4 : ⅛ ) : 1 3/5
= (4 x 8/1) x 5/8
= 160/8 = 20

i) 27 : (10⅔ : 8)
= 27 : ( 32/3 x ⅛)
= 27 x ¾
= 81/4
= 20¼

j) ( 9⅓ : 1 7/9) : 1 2/7
= (28/3 x 9/16) x 7/9
= 98/24
= 49/12
= 4 1/12