Jawabanmu

2014-09-01T15:30:13+07:00
 2/3 : 3/4 = 2/3 x 4/3 = 8/9
8/9 : 4/5 =8/9 x 5/4=10/9
10/9 : 5/6=10/9 x 6/5=4/3
   jadi hasilnya 4/3
2014-09-01T15:31:56+07:00
(⅔ : ¾ ): 4/5 : 5/6
= ((2/3 × 4/3) × 5/4) × 6/5
= (8/9 × 5/4) × 6/5
= 40/36 × 6/5
= 240/180

= 4/3 (disederhanakan)