Answer
$\displaystyle \frac{3x-4}{5x-4}$
Work Step by Step
To subtract rational expressions with the same denominator,
subtract numerators and place the difference over the common denominator.
If possible, factor and simplify the result.
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$\displaystyle \frac{3x}{5x-4}-\frac{4}{5x-4}=\frac{3x-4}{5x-4}$
