anonymous
  • anonymous
(-4/7) - (-2 1/2)
Mathematics
schrodinger
  • schrodinger
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anonymous
  • anonymous
You need to find the LCD. You can rewrite this as: (-4/7) - (-5/2)
anonymous
  • anonymous
why is it -5/2 though thats what i dont understand
anonymous
  • anonymous
-2 1/2 is equivalent to -5/2

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anonymous
  • anonymous
You multiply the denominator times the whole number and add the numerator.
anonymous
  • anonymous
oh soo you convert it into an improper fraction right?
anonymous
  • anonymous
Yes
anonymous
  • anonymous
ok thank you
anonymous
  • anonymous
You're welcome
anonymous
  • anonymous
27/14
anonymous
  • anonymous
thanks but i found out already

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