Which option will not have a terminating decimal expansion?
Answer and explanation
Correct answer: (\frac{51}{119})
Step 1: (\frac{91}{182}=\frac{1}{2}), (\frac{39}{156}=\frac{1}{4}), and (\frac{68}{170}=\frac{2}{5}). Step 2: (\frac{51}{119}) does not reduce, and (119=7\times17). Step 3: Exam tip: In multi-option questions, reduce each fraction before choosing the non-terminating one.
Frequently asked questions
What is the correct answer to this question?
(\frac{51}{119})
Why is this the correct answer?
Step 1: (\frac{91}{182}=\frac{1}{2}), (\frac{39}{156}=\frac{1}{4}), and (\frac{68}{170}=\frac{2}{5}). Step 2: (\frac{51}{119}) does not reduce, and (119=7\times17). Step 3: Exam tip: In multi-option questions, reduce each fraction before choosing the non-terminating one.
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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