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posted by derrick Thursday, May 21, 2009 at 6:52pm.

8/-7+4/5 in simplest fraction form

first, get them a common denominator (in this case 35). so (-8/7)5/5+(4/5)7/7= (-40/35)+(28/35) = (-40+28)/35 = -12/35 or so i believe

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