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7-34.

Compute each sum or difference. Homework Help ✎

Before adding or subtracting, change one or both fractions so that they have the same denominator.

Use a Giant One to convert to an equivalent fraction.

  1. Find the lowest common denominator.

    Convert the fraction(s).

    Find the sum or difference.

    Simplify, if necessary.

  1. The lowest common denominator is .