Distributive property of multiplication over addition: (a+b)⋅c=a⋅c+b⋅c. If c is a fraction, multiply each term inside the parentheses by that fraction, then add the fractions (usually with a common denominator first).
First expand: multiply each term by the factor
Adding fractions — common denominator, then numerators
Reduce the answer when possible
Explained: fraction × sum
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