That'ws why I am stuck initially but suddenly, I thought of a
way.
Next term = 20
55, 44, 36, 30, 25, 20.
The difference will still be 5.
So, bringing the difference over,
231, 176, 132, 96, 66, 41, 21.
The next two terms will be 41/264 and 7/88. 
Anyway, anyhow whack only lol.
I am very curious to know the two answers.