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4-53.

Simplify the following expressions. Homework Help ✎

  1. You must find a common denominator before you can combine these terms.

    A common denominator is often a multiple of both denominators of the fractions that are to be combined.
    A good one to use for this expression would be .

  1.  Giant 1 fraction 2 over 2 

  1. Refer to part (a).