add simplify if possible (4)/(yz^2)+(7)/(y^2z)

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(4)/(yz^2)+(7)/(y^2z)  You need to get a common denominator multiply the first by z/z and the second by z/z to get the common denominator.  Remember y/y and y/y equals 1

4z/y^2z^2 + 7y/y^2z^2 = 4z + 7y/y^2z^2

by Level 10 User (55.7k points)

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