You need to know the least common denominator (LCD) of 83 and 66 if you want to add or subtract two fractions with 83 and 66 as denominators.
The least common denominator, also called lowest common denominator (LCD), of 83 and 66 is 5478.
Here is a math problem example where you need to know the LCD of 83 and 66 to solve:
3/83 + 2/66 = ?
Step 1) Take the LCD and divide each denominator by it as follows:
5478/83 = 66
5478/66 = 83
Step 2) Multiply each nominator with the respective answers from Step 1:
3 x 66 = 198
2 x 83 = 166
Step 3) Put it all together to solve the problem:
198/5478 + 166/5478 = 364/5478
= 3/83 + 2/66 = 364/5478
It's that easy! Once again, the lowest common denominator (LCD) of 83 and 66 is as follows:
5478
Find Least Common Denominators
Enter another two numbers below to find the Least Common Denominator.