LCD of 49, 78, 20 Calculator

Arrange the Inputs 49,78,20 in a horizontal line separated by commas and divide them with a prime number. Note the quotients in the next row and divide with quotients with prime numbers again. Continue the process until you have all co primes in the last.

As all the numbers left in the last row are co primes you need not do the common division process further.

To obtain the Least Common Denominator, multiply the prime numbers with which you have divided the given numbers and the co primes in the last row i.e. 2 x 49 x 39 x 10 = 38220

Therefore, LCD of 49,78,20 is 38220

Step1:

Let's calculate the LCD of first two numbers

The formula of LCD is LCD(a,b) = ( a x b) / GCF(a,b)

GCF(49, 78) = 1

LCD(49, 78) = ( 49 x 78 ) / 1

LCD(49, 78) = 3822 / 1

LCD(49, 78) = 3822

Step2:

Here we consider the LCD from the above i.e. 3822 as first number and the next as 20

The formula of LCD is LCD(a,b) = ( a x b) / GCF(a,b)

GCF(3822, 20) = 2

LCD(3822, 20) = ( 3822 x 20 ) / 2

LCD(3822, 20) = 76440 / 2

LCD(3822, 20) = 38220

LCD of 49,78,20 is 38220

Here are some samples of LCD of Numbers calculations.

• LCD of 29, 23, 39
• LCD of 96, 71, 45
• LCD of 77, 22, 35
• LCD of 69, 31, 51
• LCD of 60, 34, 84

1. What is the LCD of 49, 78, 20?

Answer: LCD of 49, 78, 20 is 38220.

2. How to find LCD of 49, 78, 20 on a calculator?

Answer: You can find LCD of 49, 78, 20 by simply giving the inputs in the input field and clicking on the Calculator button next to it to get the concerned Least Common Denominator.

3. How to Find the LCD of 49, 78, 20?

Least Common Denominator of 49, 78, 20.

Step 1: Divide all the numbers with common prime numbers having remainder zero.

Step 2: Then multiply all the prime factors with last row quotient of common division that is LCD(49, 78, 20) = 38220.