2 2/8: 8,4x 4 8/10- 1,3+5 1/6

jadi jawabannya 5 16/105

2 2/8 = 18/8 = 9/4
8,4 = 84/10 = 42/5
4 8/10 = 48/10 = 24/5
1,3 = 13/10
5 1/6 = 31/6

9/4 : 42/5 = 9/4 x 5/42 = 45/168 
45/168 x 24/5 = 45/7 x 1/5 = 45/35 = 9/7
9/7 - 13/10 = 90/70 - 91/70 = -1/70
-1/70 + 31/6 = -6/420 + 2170/420 = 2164/420
2164/420 = 5 64/420 = 5 16/105

maaf kalau salah