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OpenStudy (anonymous):
I have this exercise and i don't now how to do it... a= -2/3 b= +7/3 I have do do this : -a-b /-a+b Please expalin me how to do it !!! :)
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OpenStudy (anonymous):
(2/3 -7/3) / (2/3 + 7/3) = (-5/3) / 7/3 (-5/3) / (7/3) = (-5/3)(3/9) = -15/27
OpenStudy (anonymous):
i'm not sure but i think that best way to solve
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