Answer:
Only numbers that are the same can be added or subtracted. Knowing the GCF and LCM can help in converting fraction to the same denominator so that they can be added.
Explanation:
Only numbers that are the same can be added or subtracted. Knowing the GCF( greatest common factor) and LCM (least common factor) can help in converting fraction to the same denominator so that they can be added.
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