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Which is bigger: 3/8 or 7/20
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Which is bigger: 3/8 or 7/20

User Jason
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6 votes

(3)/(8)= (3)/(8)* (5)/(5)= (15)/(40) \\ (7)/(20) = (7)/(20)* (2)/(2) =(14)/(40) \\ \\ (3)/(8)\ \textgreater \ (7)/(20) \\ \\ or \\ \\ 3*20\ \textgreater \ 7*8 \\ \\ (3)/(8)\ \textgreater \ (7)/(20)
User Mark Yuan
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7.6k points
5 votes

\rm ^(20))(3)/(8)= (60)/(160) \\ \\ ^(8))(7)/(20)= (56)/(160) \\ \\ So~ (3)/(80)~is~bigger~because~60\ \textgreater \ 56.
User Mathew Magante
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7.7k points
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