7.4AddingandSubtractingRationalExpressionsSpiralReview:Howdoyouaddfractions?Example1:AddingorSubtractingwithLikeDenominatorsSimplify

a) !"# +

%"# = b) (##)* −

,#)* =

Example2:AddingwithUnlikeDenominatorsFindthesum:

79/( +

/3/( + 3/ =

Example3:AddingwithUnlikeDenominatorsFindthesum:

/ + 22/ − 2 −

−2/ − 1/( − 4/ + 3 =

Tryonyourown:Findthesumordifference.

Example4:RewritingandGraphingaRationalFunctionRewritethefunction4 / = %#),

#)5 intheform4 / = 6#78 + 9.Graphthefunction.

Example5:SimplifyingComplexFractionsSimplify

5/ + 41

/ + 4 +2/

Homework:3,5,19-25odd,31,39,41,43,47,49