(15:5/18:3 3/8)*(-1/16-11/36-5/48-5/18)
---------------------------------------------------- черта дроби
(8 21/22-11 5/11):1 2/3 по действиям

(15×18/5×8/27)×(-1/16-11/36-5/48-5/18)------------------------------------------------------(197/22-126/11)÷5/316×(-1/16-11/36-5/48-5/18)------------------------------------(197-252/22)÷5/3-19/9-----------------55/22÷5/3-108/9---------3/2-108/9×(-2/3)ответ8