Verified answer

= (4ab/3z)/(4a²/5z)

= 4ab/3z(5z/4a²)

= ([4ab/4a]/[3z/z])([5z/z]/[4a²/4a])

= b/3(5/a)

= 5b/3a

Answer: 5b/3a

To divide fractions multiply the first fraction by the inverse of the second. Example:

a/b ÷ c/d = a/b * d/c