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Jerry bought a package of pens contain a 20×3/4 of the pens had black ink how do you determine the number of pants with black ink

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LacyMarie
If you're saying there were 20 pens and 3/4 of them had black ink, you divide 20 by 4, the denominator, to get 5. Once you have the number 5 you multiply it by the numerator, 3, to get 15. 15 of the pens had black ink.
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