What type of decimal expansion does (\frac{27}{990}) have?
Answer and explanation
Correct answer: Non-terminating recurring
Step 1: (\frac{27}{990}=\frac{3}{110}). Step 2: (110=2\cdot 5\cdot 11), so (11) remains in the denominator. Hence the decimal is non-terminating recurring. Step 3: If a reduced denominator has a prime other than (2) or (5), it will not terminate.
Frequently asked questions
What is the correct answer to this question?
Non-terminating recurring
Why is this the correct answer?
Step 1: (\frac{27}{990}=\frac{3}{110}). Step 2: (110=2\cdot 5\cdot 11), so (11) remains in the denominator. Hence the decimal is non-terminating recurring. Step 3: If a reduced denominator has a prime other than (2) or (5), it will not terminate.
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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