Form 8: Prime Factorization of Denominators and Decimal Types
Analyze the prime factorization of a denominator to identify if a fraction becomes a terminating or repeating decimal.
Questions
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MultiChoice
A simplified fraction has a denominator with prime factors of 2 and 5 only. What type of decimal does it form?
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MultiChoice
A simplified fraction has a denominator with prime factors 3 and 5. What type of decimal does it form?
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MultiChoice
Why does 3/20 convert to a terminating decimal?
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MultiChoice
Why does 5/18 convert to a repeating decimal?
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MultiChoice
Which of the following denominators will yield a terminating decimal?
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MultiChoice
Which of the following denominators will yield a repeating decimal?
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MultiChoice
The denominator of 9/40 is 40. Prime factorization of 40 is 2 x 2 x 2 x 5. Is 9/40 terminating or repeating?
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MultiChoice
The denominator of 7/30 is 30. Prime factorization of 30 is 2 x 3 x 5. Is 7/30 terminating or repeating?
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MultiChoice
Which denominator in simplest form guarantees a repeating decimal?
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MultiChoice
Which prime factor causes a fraction (in simplest form) to become a repeating decimal?
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MultiChoice
The fraction 21/30 simplifies to 7/10. Is its decimal form terminating or repeating?
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MultiChoice
The fraction 6/15 simplifies to 2/5. Is its decimal form terminating or repeating?