Hmm...
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Pretend you are Zoe ( I don't care if you are a boy or a girl just PRETEND )
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In real life, what would YOU DO?
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Maybe cut it into 6 equal pieces, and multiply them by 5?
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NAILED IT!!
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So, whadda ya do now?
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Multiply 3 by 5/6, of course.
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What's that?
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Yep.
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5/2.
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Hope I helped! Any other questions, don't be afraid to ask!!