You need to know the least common denominator (LCD) of 4 and 73 if you want to add or subtract two fractions with 4 and 73 as denominators.
The least common denominator, also called lowest common denominator (LCD), of 4 and 73 is 292.
Here is a math problem example where you need to know the LCD of 4 and 73 to solve:
3/4 + 2/73 = ?
Step 1) Take the LCD and divide each denominator by it as follows:
292/4 = 73
292/73 = 4
Step 2) Multiply each nominator with the respective answers from Step 1:
3 x 73 = 219
2 x 4 = 8
Step 3) Put it all together to solve the problem:
219/292 + 8/292 = 227/292
= 3/4 + 2/73 = 227/292
It's that easy! Once again, the lowest common denominator (LCD) of 4 and 73 is as follows:
292
Find Least Common Denominators
Enter another two numbers below to find the Least Common Denominator.