You need to know the least common denominator (LCD) of 2 and 61 if you want to add or subtract two fractions with 2 and 61 as denominators.
The least common denominator, also called lowest common denominator (LCD), of 2 and 61 is 122.
Here is a math problem example where you need to know the LCD of 2 and 61 to solve:
3/2 + 2/61 = ?
Step 1) Take the LCD and divide each denominator by it as follows:
122/2 = 61
122/61 = 2
Step 2) Multiply each nominator with the respective answers from Step 1:
3 x 61 = 183
2 x 2 = 4
Step 3) Put it all together to solve the problem:
183/122 + 4/122 = 187/122
= 3/2 + 2/61 = 187/122
It's that easy! Once again, the lowest common denominator (LCD) of 2 and 61 is as follows:
122
Find Least Common Denominators
Enter another two numbers below to find the Least Common Denominator.