Question

Divide.
(15mn-20n)/(5n)

Answer 1

Common factor : n

Answer 2

\[\frac{ 15mn-20n }{ 5n }\]

Answer 3

Again, this can be written as:
\[\frac{ 15mn}{ 5n } - \frac{20n}{5n}\]
Which will give you:
\[3m - 4\]

Answer 4

Actually, the common factor (greatest common factor) of the numerator is 5n.

@jjuden: Please factor 5n out of the numerator.

Then simplifiy the resulting ratio.