SOLUTION: how would i do this? Combine the following fractions by addition or subtraction as directed 7 over xz + 2 over xy 4 over yz

Algebra ->  Numeric Fractions Calculators, Lesson and Practice -> SOLUTION: how would i do this? Combine the following fractions by addition or subtraction as directed 7 over xz + 2 over xy 4 over yz      Log On


   



Question 146835: how would i do this? Combine the following fractions by addition or subtraction as directed
7 over xz + 2 over xy 4 over yz

Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
Combine the following fractions by addition or subtraction as directed
7 over xz + 2 over xy 4 over yz
-----------------
(7/xz) + (2/xy) + (4/yz)
lcd = xyz
=(7y/xyz) + (2z/xyz) + (4x/xyz)
= (7y+2z+4x)/xyz
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Cheers,
Stan H.