Mathematics, 08.11.2020 19:20 dwhitlock10

There are 28 red pens and 84 black pens in a bag. Write down the ratio of the number of red pens to the number of black pens.
Give your ratio in its simplest form.

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There are 28 red pens and 84 black pens in a bag. Write down the ratio of the number of red pens to...

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