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12 cards from this deck
Fractions containing algebraic expressions (with variables) in the numerator, denominator, or both
They follow exactly the same rules
Factor completely (both numerator and denominator)
Common factors in both numerator and denominator
Multiply numerators together and denominators together
Multiply by the reciprocal of the second fraction
Need a common denominator
Only common factors (in both numerator and denominator)
Cannot cancel xxx or numbers separately; must factor first
Least common multiple (LCM) of the denominators
Identify common factors
Substitute a simple value (like x=1x=1x=1) into both expressions
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