anonymous
  • anonymous
what number must be added to both the numerator and the denominator of the fraction 5/21 to give a fraction equal to 3/7?
Mathematics
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anonymous
  • anonymous
what number must be added to both the numerator and the denominator of the fraction 5/21 to give a fraction equal to 3/7?
Mathematics
chestercat
  • chestercat
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At vero eos et accusamus et iusto odio dignissimos ducimus qui blanditiis praesentium voluptatum deleniti atque corrupti quos dolores et quas molestias excepturi sint occaecati cupiditate non provident, similique sunt in culpa qui officia deserunt mollitia animi, id est laborum et dolorum fuga. Et harum quidem rerum facilis est et expedita distinctio. Nam libero tempore, cum soluta nobis est eligendi optio cumque nihil impedit quo minus id quod maxime placeat facere possimus, omnis voluptas assumenda est, omnis dolor repellendus. Itaque earum rerum hic tenetur a sapiente delectus, ut aut reiciendis voluptatibus maiores alias consequatur aut perferendis doloribus asperiores repellat.

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King
  • King
7
anonymous
  • anonymous
how?
anonymous
  • anonymous
(5+x) / (21+x) = 3/7

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King
  • King
let the number be x....then (5+x)/(21+x)=3/7 crossmultiply 35+7x=63+3x 4x=28 x=7
anonymous
  • anonymous
let the number that you must add be called x. on the top you have 5+x while on the bottom you have 21+x together they must form a fraction equal to 3/7
anonymous
  • anonymous
(5+x)/(21+x)=3/7 crossmultiply 35+7x=63+3x 4x=28 x=7
anonymous
  • anonymous
^Quit cheating -_-
anonymous
  • anonymous
http://lmgtfy.com/?q=+what+number+must+be+added+to+both+the+numerator+and+the+denominator+of+the+fraction+5%2F21+to+give+a+fraction+equal+to+3%2F7%3F+
anonymous
  • anonymous
fine then
anonymous
  • anonymous
Just stop. -.-
anonymous
  • anonymous
why
anonymous
  • anonymous
u stop
anonymous
  • anonymous
lol
anonymous
  • anonymous
now all we need is a "let me wolframalpha that for you" site

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