Question 301574
(2m - 5)/(6m - 15) =

Factor denominator as step one.

The denominator becomes 3(2m - 5).

We now have the fraction:

(2m - 5)/3(2m - 5).

Cancel out the common quantity that appears on the top and bottom.  In other words, cancel (2m - 5) on the top and bottom.

The final answer is 1/3.