(2 9/16 + 5.45 : 6 8/35 ) :6 1/9
1) 5,45 : 6 8/35 = 545/100 : 218/35 = 109/20 * 35/218 = 7/8
2) 2 9/16 + 7/8 = 2 9/16 + 14/16 = 2 23/16 = 3 7/16
3) 3 7/16 : 6 1/9 = 55/16 : 55/9 = 55/16 * 9/55 = 9/16
ответ: 9/16
(41/16+109/20*35/218)*9/55=(41/16+1/4*7/2)*9/55=(41/16+7/8)*9/55=55/16*9/55=1/16*9=9/16=0,5625