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16 October, 15:45

There are 15 boys and 20 girls in the 7th grade class.

What is the ratio of boys to girls in simplified form?

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Answers (2)
  1. 16 October, 15:55
    0
    30 girls 20 boys

    Step-by-step explanation:

    b = number of boys = 20

    g = number of girls

    b/g = 10/15 = 2/3

    g = b / (2/3) = 20 / (2/3) = 60/2 = 30

    30 girls, 20 boys
  2. 16 October, 16:01
    0
    15 : 20 = 3 : 4

    Step-by-step explanation:

    We can simplify the ratio 15 : 20 by dividing both terms by the greatest common factor (GCF).

    The GCF of 15 and 20 is 5.

    Divide both terms by 5.

    15 : 5 = 3

    20 : 5 = 4

    Therefore:

    15 : 20 = 3 : 4
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