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Simplify each expression.

  1. Multiply the numerators together and the denominators together.

  1. Find a common denominator.

  1. Multiply, see (a) for help.

  1. Multiply the terms, then find the common denominator.

  1. Make fractions greater than one, then find the least common denominator

  1. Convert the mixed numbers into fractions greater than one before multiplying.