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12 cards from this deck
Fractions containing variables like xxx or yyy
Must have same denominator
Find a common denominator
The numerators only
The denominator
Simplify by factorising and cancelling
Multiply top and bottom by same expression
(x−1)(x+2)(x-1)(x+2)(x−1)(x+2)
(x−3)(x+3)(x-3)(x+3)(x−3)(x+3) (difference of squares)
(x−2)2(x-2)^2(x−2)2 (perfect square trinomial)
Be careful with negative signs
Add or subtract the numerators directly
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