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The fraction six eighths is not simplified because six and eight share a common factor of:
AThe number three
BThe number six
CThe number eight
DThe number two
Answer & Solution
Correct answer: D. The number two
1. Simplification depends on shared factors.
2. A fraction is considered simplified if there are no common factors.
3. Six has factors 1, 2, 3 and 6.
4. Eight has factors 1, 2, 4 and 8.
5. They share the factor two, so six eighths is not yet simplified.
_Source: OpenStax Prealgebra 2e (CC BY 4.0), Ch 4 'Fractions', sections 4.1-4.7_
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