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Question Medium Mathematics Real Numbers 7: Decimal expansion of rational numbers Class 10 Level 20

परिमेय संख्या \(\frac{7}{45}\) के दशमलव प्रसार के बारे में सही कथन चुनिए।

Choose the correct statement about the decimal expansion of the rational number \(\frac{7}{45}\).

Explanation opens after your attempt
Correct Answer

B. असमाप्त आवर्ती होगाIt will be non-terminating recurring

Step 1

Concept

\(45=3^2\times5\).

Step 2

Why this answer is correct

The denominator also has (3), so it is not made only of (2) and (5).

Step 3

Exam Tip

If any other prime remains in the reduced denominator, the decimal expansion is non-terminating recurring. चरण 1: \(45=3^2\times5\) है। चरण 2: हर में (3) भी है, इसलिए यह (2) और (5) तक सीमित नहीं है। चरण 3: सहअभाज्य रूप में हर में अन्य अभाज्य आने पर दशमलव असमाप्त आवर्ती होता है।

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