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Mathematics 19 Online
OpenStudy (anonymous):

(-4/7) - (-2 1/2)

OpenStudy (anonymous):

You need to find the LCD. You can rewrite this as: (-4/7) - (-5/2)

OpenStudy (anonymous):

why is it -5/2 though thats what i dont understand

OpenStudy (anonymous):

-2 1/2 is equivalent to -5/2

OpenStudy (anonymous):

You multiply the denominator times the whole number and add the numerator.

OpenStudy (anonymous):

oh soo you convert it into an improper fraction right?

OpenStudy (anonymous):

Yes

OpenStudy (anonymous):

ok thank you

OpenStudy (anonymous):

You're welcome

OpenStudy (anonymous):

27/14

OpenStudy (anonymous):

thanks but i found out already

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