To solve \( \frac{1}{3} + \frac{7}{9} \):

1. Find the least common denominator (LCD). The LCD of 3 and 9 is 9.
2. Convert \( \frac{1}{3} \) to have a denominator of 9. Multiply both the numerator and denominator by 3:
   \[
   \frac{1}{3} = \frac{3}{9}
   \]
3. Now, add \( \frac{3}{9} \) and \( \frac{7}{9} \):
   \[
   \frac{3}{9} + \frac{7}{9} = \frac{3 + 7}{9} = \frac{10}{9}
   \]
   
The result is \( \frac{10}{9} \), which is an improper fraction. You can also express it as a mixed number:
\[
\frac{10}{9} = 1 \frac{1}{9}
\]

Let me know if you'd like more details or have any questions!

### Related Questions:
1. How do you find the least common denominator between two fractions?
2. How can you simplify improper fractions into mixed numbers?
3. What is the process for subtracting fractions with different denominators?
4. How can you convert mixed numbers back into improper fractions?
5. What is the difference between a proper fraction and an improper fraction?

### Tip:
When adding or subtracting fractions, always look for the least common denominator to make calculations easier.

Learn how to solve the addition of fractions problem 1/3 + 7/9. This step-by-step solution involves finding the least common denominator (LCD), converting to improper fractions, and expressing the answer as a mixed number. Ideal for students in Grades 4-6.

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