SOLUTION: Least common denominators are required for subtracting rational expressions. What steps must be taken to obtain this requirement? Demonstrate the process with your own example.

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Question 404048: Least common denominators are required for subtracting rational expressions. What steps must be taken to obtain this requirement? Demonstrate the process with your own example.
Answer by richard1234(7193) About Me  (Show Source):
You can put this solution on YOUR website!
Just do the same process as if you were adding normal fractions, such as 5%2F7+%2B+1%2F3. For example,