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What is the Least Common Denominator of 8 and 12?


You need to know the least common denominator (LCD) of 8 and 12 if you want to add or subtract two fractions with 8 and 12 as denominators.

The least common denominator, also called lowest common denominator (LCD), of 8 and 12 is 24.


Here is a math problem example where you need to know the LCD of 8 and 12 to solve:

3/8 + 2/12 = ?

Step 1) Take the LCD and divide each denominator by it as follows:

24/8 = 3
24/12 = 2

Step 2) Multiply each nominator with the respective answers from Step 1:

3 x 3 = 9
2 x 2 = 4

Step 3) Put it all together to solve the problem:

9/24 + 4/24 = 13/24
= 3/8 + 2/12 = 13/24

It's that easy! Once again, the lowest common denominator (LCD) of 8 and 12 is as follows:

24

What is the Least Common Denominator of 8 and 13?
Go here for the next Least Common Denominator on our list that we calculated.





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