16-18 tolong jawab (pake cara)

(29/3 + 14/3 x 1/4) :2/5
(29/3 + 7/6) :2/5
(58/3+7/6) : 2/5
65/6 : 2/5
= 65/6 x 5/2
= 325/12

(17/6 + 11/3) x 17/4
= (17/6 +22 /6 ) x 17/4
= 39/6 x 17/4
= 221/8

65/12 :   13/5  :    8/9
65/12  x 5/13 x 9/8
= 75/32