To add two fractions, ensure they have a common denominator. Since the fractions \(-\frac{5}{9}\) and \(\frac{3}{9}\) already have the same denominator, you can directly add the numerators and keep the denominator the same.
Step 1: Identify the Fractions
We are given two fractions to add: \(-\frac{5}{9}\) and \(\frac{3}{9}\).
Step 2: Ensure Common Denominator
Both fractions already have a common denominator of 9, so we can proceed to add the numerators directly.
Step 3: Add the Numerators
Add the numerators of the fractions:
\[
-5 + 3 = -2
\]
Step 4: Form the Resulting Fraction
The resulting fraction after adding the numerators is:
\[
\frac{-2}{9}
\]
Step 5: Convert to Decimal
Convert the fraction \(\frac{-2}{9}\) to a decimal:
\[
\frac{-2}{9} \approx -0.2222
\]