# Using Operations to Combine Rational Functions

Taught by mrbrianmclogan
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Lesson Summary:

In this lesson, you will learn how to add, subtract, multiply, and divide rational functions. By adding and subtracting the individual functions, you'll obtain a common denominator, which will allow you to combine the fractions. By multiplying, you'll simply multiply the numerators and denominators. By dividing, you'll multiply by the reciprocal of the second fraction and simplify. Remember that when dividing, you cannot use 0 as a denominator.

Lesson Description:

Using operations to combine rational functions

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Questions answered by this video:
• When adding or subtracting rational functions what must you first find?
• What does (f/g)x mean?
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