You need to know the least common denominator (LCD) of 75 and 3 if you want to add or subtract two fractions with 75 and 3 as denominators.
The least common denominator, also called lowest common denominator (LCD), of 75 and 3 is 75.
Here is a math problem example where you need to know the LCD of 75 and 3 to solve:
3/75 + 2/3 = ?
Step 1) Take the LCD and divide each denominator by it as follows:
75/75 = 1
75/3 = 25
Step 2) Multiply each nominator with the respective answers from Step 1:
3 x 1 = 3
2 x 25 = 50
Step 3) Put it all together to solve the problem:
3/75 + 50/75 = 53/75
= 3/75 + 2/3 = 53/75
It's that easy! Once again, the lowest common denominator (LCD) of 75 and 3 is as follows:
75
Find Least Common Denominators
Enter another two numbers below to find the Least Common Denominator.