Which statement is correct about the decimal expansions of (\frac{3}{14}) and (\frac{9}{28})?
Answer and explanation
Correct answer: Both are non-terminating recurring
Step 1: (14=2\times7) and (28=2^2\times7). Step 2: Factor (7) remains in both denominators, so both decimals do not terminate. Step 3: Exam tip: In comparison questions, prime-factorise both denominators separately.
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What is the correct answer to this question?
Both are non-terminating recurring
Why is this the correct answer?
Step 1: (14=2\times7) and (28=2^2\times7). Step 2: Factor (7) remains in both denominators, so both decimals do not terminate. Step 3: Exam tip: In comparison questions, prime-factorise both denominators separately.
Which subject and chapter does this question cover?
This is a Class 10 Mathematics question. Chapter: Real Numbers. Topic: Decimal expansion of rational numbers.
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