Question4. An equation is modeled on the number line.
Which equation does this model represent? A. $\frac{6}{9}+\frac{1}{3}=\frac{8}{9}$ B. $\frac{8}{9}-\frac{2}{9}=\frac{6}{9}$ C. $\frac{2}{3}+\frac{2}{9}=\frac{8}{9}$ D. $\frac{6}{9}+\frac{8}{9}=\frac{14}{18}$ vers in simplest form.

Studdy Solution
Check each option: - Option A: $\frac{6}{9} + \frac{3}{9} = \frac{9}{9}$ (not correct) - Option B: $\frac{8}{9} - \frac{2}{9} = \frac{6}{9}$ (not addition) - Option C: $\frac{6}{9} + \frac{2}{9} = \frac{8}{9}$ (correct) - Option D: $\frac{6}{9} + \frac{8}{9} = \frac{14}{18}$ (incorrect simplification)
The equation that the number line model represents is:
$\boxed{\frac{2}{3} + \frac{2}{9} = \frac{8}{9}}$