7'2 Adding

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7.2 Adding Subtracting Homework All Odds 1
37Add or Subtract When Denominators Are
Same1. Keep the common denominator.2. Add or
subtract the numerators.3. Factor simplify
when possible.
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Finding the LCM1. Factor all denominators to
their prime factorizations.2. Include all
factors of the first factorization. 3. Include
any factors of the other factorizations not
already included.
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Add Subtract When Denominators Are Not The
Same1. Find the LCM.2. Build equivalent
fractions.3. Add or subtract.4. Factor
simplify when possible.