The lowest is the only negative number, -0.9
So we start:
-0.9....
Then we compare 1/11, 0.09 and 1/10.
1/10 is 0.1 in decimals so we know that 1/10>0.09
1/11 is smaller than 1/10 and actually in decimal it's 0.09090909...so it's bigger than 0.09.
So se have: 1/10>1/11>0.09
and the final answer is
-0.9, 0.09, 1/11, 1/10