<h2>
Hello!</h2>
The answers are:
A. 
 and
 and 
D.
 and
 and 
<h2>
Why?</h2>
To find which of the following pairs of numbers contains like fractions, we must remember that like fractions are the fractions that share the same denominator. 
We are given two fractions that are like fractions. Those fractions are:
Option A. 
 and
 and 
We have that:

So, we have that the pairs of numbers 
 
 
and 

Share the same denominator, which is equal to 6, so, the pairs of numbers contains like fractions.
Option D. 
 and
 and 
We have that:

So, we have that the pair of numbers
 
 
and

Share the same denominator, which is equal to 7, so, the pairs of numbers constains like fractions.
Also, we have that the other given options are not like fractions since both pairs of numbers do not share the same denominator.
The other options are:

and

We can see that both pairs of numbers do not share the same denominator so, they do not contain like fractions.
Hence, the answers are:
A. 
 and
 and 
D.
 and
 and 
Have a nice day!
 
        
        
        
Answer:
Paying 30 days or more past due could drop your score as much as 100 points.
 
        
             
        
        
        
So, we know that it takes Sam 1 mph up and 9 mph down and it takes Liam both 2 mph down and up the hill. So if we divide the 2 mph for Liam by 2 miles (the whole length of the hill)  we will get 1 or 1 hour. Then we do 1/1 (i don't know how to explain this part of why we do that, sorry) and than we do 1 / 9 and we get 1/9 so we add them and get 1 1/9 so that's Sam's time.
       So, Liam took one hour and Sam took 1 and 1/9 hours, in conclusion liam was faster
<h2> (I'm really sorry for my bad explaining, i tried my best)</h2>