You need to know the least common denominator (LCD) of 5 and 49 if you want to add or subtract two fractions with 5 and 49 as denominators.
The least common denominator, also called lowest common denominator (LCD), of 5 and 49 is 245.
Here is a math problem example where you need to know the LCD of 5 and 49 to solve:
3/5 + 2/49 = ?
Step 1) Take the LCD and divide each denominator by it as follows:
245/5 = 49
245/49 = 5
Step 2) Multiply each nominator with the respective answers from Step 1:
3 x 49 = 147
2 x 5 = 10
Step 3) Put it all together to solve the problem:
147/245 + 10/245 = 157/245
= 3/5 + 2/49 = 157/245
It's that easy! Once again, the lowest common denominator (LCD) of 5 and 49 is as follows:
245
Find Least Common Denominators
Enter another two numbers below to find the Least Common Denominator.