You need to know the least common denominator (LCD) of 3 and 33 if you want to add or subtract two fractions with 3 and 33 as denominators.
The least common denominator, also called lowest common denominator (LCD), of 3 and 33 is 33.
Here is a math problem example where you need to know the LCD of 3 and 33 to solve:
3/3 + 2/33 = ?
Step 1) Take the LCD and divide each denominator by it as follows:
33/3 = 11
33/33 = 1
Step 2) Multiply each nominator with the respective answers from Step 1:
3 x 11 = 33
2 x 1 = 2
Step 3) Put it all together to solve the problem:
33/33 + 2/33 = 35/33
= 3/3 + 2/33 = 35/33
It's that easy! Once again, the lowest common denominator (LCD) of 3 and 33 is as follows:
33
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