8 1/2:12 11/6= mohon dengan caranya

8 1/2 : 12 11/6
= 17/2 : 83/6
= 17/2 x 6/83
= 102/166
= 51/83

8 1/2 ÷ 12 11/6
17/2 ÷ 83/6
17/2 × 6/83 = 102/166
51/83
itu jawabannya