What is the Least Common Denominator of 2 and 55?




You need to know the least common denominator (LCD) of 2 and 55 if you want to add or subtract two fractions with 2 and 55 as denominators.

The least common denominator, also called lowest common denominator (LCD), of 2 and 55 is 110.


Here is a math problem example where you need to know the LCD of 2 and 55 to solve:

3/2 + 2/55 = ?

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

110/2 = 55
110/55 = 2

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

3 x 55 = 165
2 x 2 = 4

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

165/110 + 4/110 = 169/110
= 3/2 + 2/55 = 169/110

It's that easy! Once again, the lowest common denominator (LCD) of 2 and 55 is as follows:

110


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