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i know how to solve it but i’m just not used to the bigger numbers. could someone still walk me through step by step?
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31 votes
31 votes
i know how to solve it but i’m just not used to the bigger numbers. could someone still walk me through step by step?

i know how to solve it but i’m just not used to the bigger numbers. could someone-example-1
User Marcel Jaeschke
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1 Answer

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23 votes


\cfrac{42}{70}~~ = ~~\cfrac{u}{55}\implies \cfrac{(14)3}{(14)5}~~ = ~~\cfrac{u}{55}\implies \cfrac{3}{5}=\cfrac{u}{55}\implies \cfrac{3(55)}{5}=u \\\\\\ 3\cdot \cfrac{55}{5}=u \implies 3\cdot 11=u\implies 33=u

User Mrcasals
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