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Home > CC4 > Chapter A > Lesson A.1.1 > Problem A-10

A-10.
  1. Simplify each expression. Homework Help ✎

    1. +

    2. · 12

    3. −4 ÷ −

Find the lowest common denominator.

Pay attention to the signs.

Simplify before multiplying.

Change division by a fraction into multiplication by the reciprocal.