Answer
$\frac{3}{x^{2}y^{3}}$
Work Step by Step
Original Equation
$\frac{4}{3x^{2}y^{3}}$ + $\frac{5}{4x^{2}y^{3}}$
Add Numerators
$\frac{9}{3x^{2}y^{3}}$
Simplify
Answer: $\frac{3}{x^{2}y^{3}}$
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