You need to know the least common denominator (LCD) of 1 and 73 if you want to add or subtract two fractions with 1 and 73 as denominators.
The least common denominator, also called lowest common denominator (LCD), of 1 and 73 is 73.
Here is a math problem example where you need to know the LCD of 1 and 73 to solve:
3/1 + 2/73 = ?
Step 1) Take the LCD and divide each denominator by it as follows:
73/1 = 73
73/73 = 1
Step 2) Multiply each nominator with the respective answers from Step 1:
3 x 73 = 219
2 x 1 = 2
Step 3) Put it all together to solve the problem:
219/73 + 2/73 = 221/73
= 3/1 + 2/73 = 221/73
It's that easy! Once again, the lowest common denominator (LCD) of 1 and 73 is as follows:
73
Find Least Common Denominators
Enter another two numbers below to find the Least Common Denominator.