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Class 10MathematicsReal NumbersDecimal expansion of rational numbersEasyLevel 19
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A student says (\frac{3}{50}) will be recurring because (3) is not exactly divisible by (50). What is the correct conclusion?

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Answer and explanation

Correct answer: The decimal will terminate

Step 1: (50=2\times5^2). Step 2: The denominator has only (2) and (5), so (\frac{3}{50}) gives a terminating decimal. Step 3: Decide by prime factors of the denominator, not by a rough divisibility idea.

Related tags

Real NumbersCommon MistakeTerminating DecimalClass 10

Frequently asked questions

What is the correct answer to this question?

The decimal will terminate

Why is this the correct answer?

Step 1: (50=2\times5^2). Step 2: The denominator has only (2) and (5), so (\frac{3}{50}) gives a terminating decimal. Step 3: Decide by prime factors of the denominator, not by a rough divisibility idea.

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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10 more MCQs
  1. 1What type of decimal expansion will the rational number (\frac{3}{8}) have?
  2. 2What type of decimal expansion does (\frac{5}{6}) have?
  3. 3Under what condition does (\frac{p}{q}) have a terminating decimal expansion when the fraction is in lowest form?
  4. 4After reducing (\frac{15}{40}), what type of decimal expansion will it have?
  5. 5After at most how many decimal places will the decimal expansion of (\frac{7}{16}) terminate?
  6. 6Choose the correct statement about the decimal expansion of (\frac{11}{45}).
  7. 7Which of the following fractions will give a terminating decimal?
  8. 8Which of the following fractions will give a non-terminating recurring decimal?
  9. 9When (0.75) is written as a rational number, which form is obtained?
  10. 10If the denominator of a fraction in lowest form is (2^3\times5^2), after at most how many decimal places will its decimal expansion terminate?
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