What is the Least Common Denominator of 9 and 1?




You need to know the least common denominator (LCD) of 9 and 1 if you want to add or subtract two fractions with 9 and 1 as denominators.

The least common denominator, also called lowest common denominator (LCD), of 9 and 1 is 9.


Here is a math problem example where you need to know the LCD of 9 and 1 to solve:

3/9 + 2/1 = ?

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

9/9 = 1
9/1 = 9

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

3 x 1 = 3
2 x 9 = 18

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

3/9 + 18/9 = 21/9
= 3/9 + 2/1 = 21/9

It's that easy! Once again, the lowest common denominator (LCD) of 9 and 1 is as follows:

9


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What is the Least Common Denominator of 9 and 2?
Go here for the next Least Common Denominator on our list that we calculated.







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