Find derivative: (write answer as single fraction)

y=ln((4x-1)/x^3)

So far I have:
y'=(4/(4x-1))-3/x
How do I write as single fraction

duplicate.

To simplify the expression and write it as a single fraction, we need to find a common denominator.

First, let's simplify the denominators:
Denominator 1: 4x - 1
Denominator 2: x

The common denominator will be (4x - 1) * x.

Now, let's convert both fractions to have the same denominator:

Fraction 1: 4/(4x - 1)
Multiply the numerator and denominator by x to get:
4x/(x(4x - 1))

Fraction 2: -3/x
Multiply the numerator and denominator by (4x - 1) to get:
-3(4x - 1)/(x(4x - 1))

Now, combining both fractions, we get:
(4x - 12x + 3)/(x(4x - 1))

Simplifying further, we get:
(-8x + 3)/(x(4x - 1))

Therefore, the derivative of y = ln((4x - 1)/x^3) can be written as:
y' = (-8x + 3)/(x(4x - 1))