You need to know the least common denominator (LCD) of 57 and 8 if you want to add or subtract two fractions with 57 and 8 as denominators.
The least common denominator, also called lowest common denominator (LCD), of 57 and 8 is 456.
Here is a math problem example where you need to know the LCD of 57 and 8 to solve:
3/57 + 2/8 = ?
Step 1) Take the LCD and divide each denominator by it as follows:
456/57 = 8
456/8 = 57
Step 2) Multiply each nominator with the respective answers from Step 1:
3 x 8 = 24
2 x 57 = 114
Step 3) Put it all together to solve the problem:
24/456 + 114/456 = 138/456
= 3/57 + 2/8 = 138/456
It's that easy! Once again, the lowest common denominator (LCD) of 57 and 8 is as follows:
456
Find Least Common Denominators
Enter another two numbers below to find the Least Common Denominator.