Question

Asked Sep 2, 2019

How do I find the least common denominatior of 3 fractions that have the term x? For example, when solving for 5/(x-1) - 7/x = 3/(2x-2), I see that the common denominator for these denominators is 2x(x-1). Why did not all the denominators get multiplied? How do I know what common denominator to use?

Step 1

Given,

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