
You need to know the least common denominator (LCD) of 27 and 3 if you want to add or subtract two fractions with 27 and 3 as denominators.
The least common denominator, also called lowest common denominator (LCD), of 27 and 3 is 27.
Here is a math problem example where you need to know the LCD of 27 and 3 to solve:
3/27 + 2/3 = ?
Step 1) Take the LCD and divide each denominator by it as follows:
27/27 = 1
27/3 = 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:
3/27 + 18/27 = 21/27
= 3/27 + 2/3 = 21/27
It's that easy! Once again, the lowest common denominator (LCD) of 27 and 3 is as follows:
27
Find Least Common Denominators
Enter another two numbers below to find the Least Common Denominator.