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Together

  • Together[ expr ] puts terms in a sum over a common denominator and cancels factors in the result.
  • Example: Together[1/x + 1/(1 - x)] .
  • Together makes a sum of terms into a single rational function.
  • The denominator of the result of Together is typically the lowest common multiple of the denominators of each of the terms in the sum.
  • Together avoids expanding out denominators unless it is necessary.
  • Together is effectively the inverse of Apart .
  • See also: Apart , Factor .


    Examples

    Using InstantCalculators

    Here is the InstantCalculator for the Together function. Enter the parameters for your calculation and click Calculate to see the result.

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    Entering Commands Directly

    You can paste a template for this command via the Text Input button on the Together Function Controller.

    Here is a simple example.

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    Here is another example.

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    Together explicitly makes it clear that this expression is indeterminate.

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    Together simplifies this complicated expression.

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    No cancellation is done here.

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