Built-in Mathematica Symbol

Together

Together[expr]
puts terms in a sum over a common denominator, and cancels factors in the result.

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[expr, Extension->Automatic] allows operations to be performed on algebraic numbers in expr.

Together[expr, Trig->True] treats trigonometric functions as rational functions of exponentials, and manipulates them accordingly.

Together automatically threads over lists, as well as equations, inequalities and logic functions.

Combine terms over a common denominator:

Cancel common factors between the numerator and the denominator:

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