Practice focused topic-wise MCQs with answers and explanations for quick revision and exam preparation.
Difficulty select karke sirf is topic ke focused MCQs practice karein. Score, timer aur explanations student-friendly flow me milenge.
Showing 11-20 of 651 questions.
What is the multiplicative inverse of \( \frac{-4}{9} \)?
B. \( \frac{-9}{4} \)
गुणात्मक प्रतिलोम में अंश और हर बदल जाते हैं और चिह्न वही रहता है। गुणनफल (1) होना चाहिए। / In the multiplicative inverse numerator and denominator are interchanged and the sign remains. The product should be (1).
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What is the value of \( \frac{1}{2}+\frac{1}{3} \)?
C. \( \frac{5}{6} \)
समान हर (6) लेने पर \( \frac{3}{6}+\frac{2}{6}=\frac{5}{6} \) मिलता है। भिन्न जोड़ते समय लघुत्तम समापवर्त्य लें। / Taking common denominator (6), \( \frac{3}{6}+\frac{2}{6}=\frac{5}{6} \). Use LCM while adding fractions.
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What is the value of \( \frac{7}{10}-\frac{2}{10} \)?
A. \( \frac{5}{10} \)
हर समान है इसलिए अंश घटाएँ। \( \frac{7}{10}-\frac{2}{10}=\frac{5}{10}=\frac{1}{2} \)। / The denominators are same, so subtract the numerators. \( \frac{7}{10}-\frac{2}{10}=\frac{5}{10}=\frac{1}{2} \).
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What is the value of \( \frac{3}{4}\times\frac{2}{5} \)?
B. \( \frac{3}{10} \)
अंशों और हरों को अलग-अलग गुणा करें। \( \frac{3\times2}{4\times5}=\frac{6}{20}=\frac{3}{10} \)। / Multiply numerators and denominators separately. \( \frac{3\times2}{4\times5}=\frac{6}{20}=\frac{3}{10} \).
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What is the value of \( \frac{5}{6}\div\frac{10}{3} \)?
A. \( \frac{1}{4} \)
भाग को दूसरे भिन्न के प्रतिलोम से गुणा में बदलें। \( \frac{5}{6}\times\frac{3}{10}=\frac{1}{4} \)। / Change division into multiplication by the reciprocal of the second fraction. \( \frac{5}{6}\times\frac{3}{10}=\frac{1}{4} \).
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Which is greater between \( \frac{4}{9} \) and \( \frac{5}{9} \)?
C. \( \frac{5}{9} \)
हर समान है इसलिए बड़े अंश वाला भिन्न बड़ा होगा। यहाँ (5) बड़ा है। / The denominators are same, so the fraction with greater numerator is greater. Here (5) is greater.
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Which is smaller between \( \frac{3}{8} \) and \( \frac{1}{2} \)?
A. \( \frac{3}{8} \)
\( \frac{1}{2}=\frac{4}{8} \) है इसलिए \( \frac{3}{8} \) छोटी है। तुलना के लिए समान हर बनाना उपयोगी है। / \( \frac{1}{2}=\frac{4}{8} \), so \( \frac{3}{8} \) is smaller. Making common denominators helps in comparison.
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Which number lies between \( \frac{-2}{5} \) and \( \frac{1}{5} \)?
C. \( \frac{-1}{5} \)
\( \frac{-1}{5} \) संख्या रेखा पर \( \frac{-2}{5} \) और \( \frac{1}{5} \) के बीच है। ऋणात्मक संख्याओं की दिशा ध्यान रखें। / \( \frac{-1}{5} \) lies between \( \frac{-2}{5} \) and \( \frac{1}{5} \) on the number line. Be careful with the direction of negative numbers.
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Which is a rational number between \( \frac{1}{4} \) and \( \frac{3}{4} \)?
B. \( \frac{1}{2} \)
\( \frac{1}{2}=\frac{2}{4} \) है जो \( \frac{1}{4} \) और \( \frac{3}{4} \) के बीच है। बीच की संख्या के लिए समान हर बनाइए। / \( \frac{1}{2}=\frac{2}{4} \), which lies between \( \frac{1}{4} \) and \( \frac{3}{4} \). Use common denominators to find a middle number.
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Which option is undefined because the denominator is zero?
D. \( \frac{4}{0} \)
हर शून्य होने पर भिन्न परिभाषित नहीं होती। परिमेय संख्या में हर हमेशा शून्य से अलग होना चाहिए। / A fraction is undefined when the denominator is zero. In a rational number the denominator must always be non-zero.
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