To determine if 9.11 is greater than 9.9, we can compare the two numbers digit by digit:

• Both numbers have the same whole number part: 9.
• Now, compare the decimal parts: 0.11 vs. 0.9.

Since 0.9 is equivalent to 0.90, we can see that 0.11 (which is 11 hundredths) is less than 0.90 (which is 90 hundredths).

Therefore, 9.11 < 9.9.

Final Answer: [ \boxed{\text{no}} ] 9.11 is not greater than 9.9.