1. (a) 3/5 = 3x4/5x4 = 12/20 (b) 3/5 = 3x3/5x3 = 9/15 (c) 3/5 = 3x6/5x6 = 18/30 (d) 3/5 = 3x9/5x9 = 24/45 https://www.tiwariacademy.com/ncert-solutions/class-6/maths/chapter-7/

    (a) 3/5 = 3×4/5×4 = 12/20
    (b) 3/5 = 3×3/5×3 = 9/15
    (c) 3/5 = 3×6/5×6 = 18/30
    (d) 3/5 = 3×9/5×9 = 24/45

    https://www.tiwariacademy.com/ncert-solutions/class-6/maths/chapter-7/

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  2. Total number of CDs = 3 + 5 = 8 Number of CDs purchased = 3 Fraction of CDs purchased = 3/8 Fraction of CDs received as gifts = 5/8 https://www.tiwariacademy.com/ncert-solutions/class-6/maths/chapter-7/

    Total number of CDs = 3 + 5 = 8
    Number of CDs purchased = 3
    Fraction of CDs purchased = 3/8
    Fraction of CDs received as gifts = 5/8

    https://www.tiwariacademy.com/ncert-solutions/class-6/maths/chapter-7/

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  3. Natural numbers from 102 to 113: 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113 Prime numbers from 102 to 113: 103, 107, 109, 113 Hence fraction of prime numbers = 4/12 = 1/3 https://www.tiwariacademy.com/ncert-solutions/class-6/maths/chapter-7/

    Natural numbers from 102 to 113:
    102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113
    Prime numbers from 102 to 113:
    103, 107, 109, 113
    Hence fraction of prime numbers = 4/12 = 1/3

    https://www.tiwariacademy.com/ncert-solutions/class-6/maths/chapter-7/

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  4. Natural numbers from 2 to 12: 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12 Prime numbers from 2 to 12: 2, 3, 5, 7, 11 Hence, fraction of prime numbers = 5/11 https://www.tiwariacademy.com/ncert-solutions/class-6/maths/chapter-7/

    Natural numbers from 2 to 12: 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12
    Prime numbers from 2 to 12: 2, 3, 5, 7, 11
    Hence, fraction of prime numbers = 5/11

    https://www.tiwariacademy.com/ncert-solutions/class-6/maths/chapter-7/

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  5. Total number of dresses = 30 Work finished = 20 Fraction of finished work = 20/30 - 2/3 https://www.tiwariacademy.com/ncert-solutions/class-6/maths/chapter-7/

    Total number of dresses = 30
    Work finished = 20
    Fraction of finished work = 20/30 – 2/3

    https://www.tiwariacademy.com/ncert-solutions/class-6/maths/chapter-7/

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