Write the following ratio using two other notations. $\frac{1}{9}$ Use only the numbers above (not any others).

Step 1 ：The question is asking for two other notations for the ratio \( \frac{1}{9} \).

Step 2 ：The two other common notations for a ratio are '1 to 9' and '1:9'.

Step 3 ：\(\boxed{'1 to 9', '1:9'}\)