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Xios teacher asked him to rewrite the sum of 60+90 as the product of the GCF of the 2 numbers and a sum. Ciao wrote 3(20+30). What mistake did Xiao make?
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Xios teacher asked him to rewrite the sum of 60+90 as the product of the GCF of the 2 numbers and a sum. Ciao wrote 3(20+30). What mistake did Xiao make?

User Jancha
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3 is not the GCF, 30 is the GCF. The answer is 30(2+3).
User Plumillon Forge
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