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Describe the steps to add the fractions and and simplify your answer.
Question: Describe the steps to add the fractions and and simplify your answer.
Sample answer: Step 1: Add the numerators since the denominators are the same to get . Step 2: Find the common factor of the numerator and denominator ( and ). Step 3: Divide out the common factor of to get the simplified answer, .
Key points:
- Add the numerators over the common denominator to get .
- Identify the common factor of in the numerator and denominator.
- Divide out the common factor to simplify the fraction to .
Rubric: Award full credit if the student describes adding the numerators, identifying a common factor, and simplifying the fraction to .
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