You need to know the least common denominator (LCD) of 72 and 5 if you want to add or subtract two fractions with 72 and 5 as denominators.
The least common denominator, also called lowest common denominator (LCD), of 72 and 5 is 360.
Here is a math problem example where you need to know the LCD of 72 and 5 to solve:
3/72 + 2/5 = ?
Step 1) Take the LCD and divide each denominator by it as follows:
360/72 = 5
360/5 = 72
Step 2) Multiply each nominator with the respective answers from Step 1:
3 x 5 = 15
2 x 72 = 144
Step 3) Put it all together to solve the problem:
15/360 + 144/360 = 159/360
= 3/72 + 2/5 = 159/360
It's that easy! Once again, the lowest common denominator (LCD) of 72 and 5 is as follows:
360
Find Least Common Denominators
Enter another two numbers below to find the Least Common Denominator.