Question 977399
Find the number of multiples of 3 in the range.
{3,6,9,12,15}.
There are 5 of them.
.
.
Find the number of even numbers,
{2,4,6,8,10,12}
There are 6 of them.
.
.
Now look at numbers that are both.
{6,12}
There are two of those.
.
.
So then,
{{{P=(5+6-2)/15=9/15=highlight(3/5)}}}