SOLUTION: simplify the expression: 5y/axy^2 + 4b/bx^2y. the answer choices are a. 9/xy b. (5x + 4y)/abxy c. (5bx + 4ay)/abxy d. (5x + 4a)/ax2y (the answer i think it is "C") but i

Question 40976: simplify the expression: 5y/axy^2 + 4b/bx^2y.
the answer choices are
a. 9/xy
b. (5x + 4y)/abxy
c. (5bx + 4ay)/abxy
d. (5x + 4a)/ax2y
(the answer i think it is "C") but i am not confident.
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
simplify the expression: 5y/axy^2 + 4b/bx^2y.
Cancel the "y" in the 1st fraction and the "b" in the 2nd fraction, to get:
5/axy + 4/x^2y
The LCD = ax^2y
5x/LCD + 4a/LCD
=(5x+4a)/(ax^2y)
Cheers,
Stan H.
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