You need to know the least common denominator (LCD) of 99 and 6 if you want to add or subtract two fractions with 99 and 6 as denominators.
The least common denominator, also called lowest common denominator (LCD), of 99 and 6 is 198.
Here is a math problem example where you need to know the LCD of 99 and 6 to solve:
3/99 + 2/6 = ?
Step 1) Take the LCD and divide each denominator by it as follows:
198/99 = 2
198/6 = 33
Step 2) Multiply each nominator with the respective answers from Step 1:
3 x 2 = 6
2 x 33 = 66
Step 3) Put it all together to solve the problem:
6/198 + 66/198 = 72/198
= 3/99 + 2/6 = 72/198
It's that easy! Once again, the lowest common denominator (LCD) of 99 and 6 is as follows:
198
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