165/176 = 15/16
8/11 - 4/15 = 120/165 - 44/165 = 76/165 which cannot be simplified.
6/165
76/165
No because 165/176 = 15/16 in its simplest form
2/15
15/16*11/17 = 165/272
165/150 = (150×1+15)/150 = 1 15/150 = 1 1/10
8/11 − 4/15 = 76/165
4/15
11
Both 165 and 847 can be evenly divided by 11, so in lowest terms, 165/847 = (165/11)(847/11) = 15/75.