Question 739756
<pre>
Here are all 36 possible rolls of a pair of dice:

(1,1) (1,2) (1,3) (1,4) (1,5) (1,6)

(2,1) (2,2) (2,3) (2,4) (2,5) (2,6) 

(3,1) (3,2) (3,3) (3,4) (3,5) (3,6) 

(4,1) (4,2) (4,3) (4,4) (4,5) (4,6) 

(5,1) (5,2) (5,3) (5,4) (5,5) (5,6) 

(6,1) (6,2) (6,3) (6,4) (6,5) (6,6)

Now I will color red all the rolls in which the first die 
shows a four or that the total on the two dice is eight.
[or both, as in the one case <font color="red">(4,4)</font>].  

(1,1) (1,2) (1,3) (1,4) (1,5) (1,6)

(2,1) (2,2) (2,3) (2,4) (2,5) <font color="red">(2,6)</font> 

(3,1) (3,2) (3,3) (3,4) <font color="red">(3,5)</font> (3,6) 

<font color="red">(4,1) (4,2) (4,3) (4,4) (4,5) (4,6)</font> 

(5,1) (5,2) <font color="red">(5,3)</font> (5,4) (5,5) (5,6) 

(6,1) <font color="red">(6,2)</font> (6,3) (6,4) (6,5) (6,6)

I count 10 red rolls.  So the answer is "10  rolls out of 36", 
or {{{10/36}}} or {{{5/18}}}

Edwin</pre>