To solve the expression \( \frac{1}{9} - 1 \), we first need to find a common denominator for the two terms:

1. The first term is \( \frac{1}{9} \).
2. The second term, \( 1 \), can be written as \( \frac{9}{9} \) to have the same denominator as the first term.

Now, the expression becomes:
\[
\frac{1}{9} - \frac{9}{9}
\]

Subtracting the fractions gives:
\[
\frac{1 - 9}{9} = \frac{-8}{9}
\]

So, \( \frac{1}{9} - 1 = -\frac{8}{9} \).

### Summary
\[
\frac{1}{9} - 1 = -\frac{8}{9}
\]

Would you like more details or have any questions? Here are some related questions to consider:

1. How do you subtract fractions with different denominators?
2. What are some real-world applications of subtracting fractions?
3. How can you simplify a negative fraction?
4. What is the difference between proper and improper fractions?
5. How do you convert a negative improper fraction to a mixed number?

**Tip:** When working with fractions, always look for a common denominator when adding or subtracting.

Learn how to subtract fractions \( \frac{1}{9} \) and \( 1 \) with a step-by-step solution. Understand the process of finding a common denominator and performing subtraction of fractions. Suitable for students in Grades 5-7.

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