You need to know the least common denominator (LCD) of 66 and 6 if you want to add or subtract two fractions with 66 and 6 as denominators.
The least common denominator, also called lowest common denominator (LCD), of 66 and 6 is 66.
Here is a math problem example where you need to know the LCD of 66 and 6 to solve:
3/66 + 2/6 = ?
Step 1) Take the LCD and divide each denominator by it as follows:
66/66 = 1
66/6 = 11
Step 2) Multiply each nominator with the respective answers from Step 1:
3 x 1 = 3
2 x 11 = 22
Step 3) Put it all together to solve the problem:
3/66 + 22/66 = 25/66
= 3/66 + 2/6 = 25/66
It's that easy! Once again, the lowest common denominator (LCD) of 66 and 6 is as follows:
66
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