What is the lcd of 1/4a and 5/6a ? 12a 24a^2 12a^2 24a

Step-by-step explanation:

The least common divisor refers to the smallest common number that multiplies all of them, so in this case, the Least Common Factor is

4    6   | 2

2    3   | 2

1     3   | 3

1     1    

So, the LCD is , and the variable would be just a, because it's already the least possible one.

Theferefore, the LCD is 12a

In the process to obtain the LCD we just separated each number in their prime factors.

question 1 is 8, question 2 is 9, question 3 is 24

step-by-step explanation:

now, the numbers they give you at the top are the key. from there, you just have to plug and chug! let's try 1, 2, and 3!

key: a=3, b=5, c=6

1. a+5

remember, a=3, so we plug that in to get 3+5=8

2. 15-c

c=6, so we plug that in to get 15-6=9

3. 4b

b=6, so we plug it in to get 4*6=24

time to try the rest on your own! if you put the answers below in a comment, i'll check them for you!