To convert the decimal 0.7 into a fraction, you can express it as \( \frac{7}{10} \).
Now, let's compare it with the given options:
- \( \frac{2}{9} \) is approximately 0.222
- \( \frac{4}{9} \) is approximately 0.444
- \( \frac{7}{9} \) is approximately 0.778
- \( \frac{8}{9} \) is approximately 0.889
Since 0.7 is not equal to any of these options, note that \( \frac{7}{9} \) is the closest fraction to 0.7, being approximately 0.778. However, the exact equivalent fraction for 0.7 is \( \frac{7}{10} \).