LCD of 42, 45, 77 Calculator

Arrange the Inputs 42,45,77 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. 3 x 7 x 2 x 15 x 11 = 6930

Therefore, LCD of 42,45,77 is 6930

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(42, 45) = 3

LCD(42, 45) = ( 42 x 45 ) / 3

LCD(42, 45) = 1890 / 3

LCD(42, 45) = 630

Step2:

Here we consider the LCD from the above i.e. 630 as first number and the next as 77

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

GCF(630, 77) = 7

LCD(630, 77) = ( 630 x 77 ) / 7

LCD(630, 77) = 48510 / 7

LCD(630, 77) = 6930

LCD of 42,45,77 is 6930

Here are some samples of LCD of Numbers calculations.

• LCD of 52, 85, 36
• LCD of 54, 43, 82
• LCD of 22, 17, 64
• LCD of 67, 95, 63
• LCD of 24, 29, 43

1. What is the LCD of 42, 45, 77?

Answer: LCD of 42, 45, 77 is 6930.

2. How to find LCD of 42, 45, 77 on a calculator?

Answer: You can find LCD of 42, 45, 77 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 42, 45, 77?

Least Common Denominator of 42, 45, 77.

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(42, 45, 77) = 6930.