Least Common Multiple of 4.2, 12.6, 21
Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
LCM of decimals calculator gives the LCM of Decimal numbers given 4.2, 12.6, 21 i.e. 63 the smallest number that divides all of them exactly.
Least Common Multiple (LCM) of 4.2, 12.6, 21 is 63.
LCM(4.2, 12.6, 21) = 63
LCM of 4.2, 12.6, 21
Enter two or more decimals separated by "commas"
Ex: 0.2, 0.3 or 0.4, 0.5, 0.6
Given numbers are 4.2,12.6,21. The highest number of digits after the decimal point in the given case is 1
Thus, in order to get rid of the decimal point we need to multiply them with 10. On doing so, they are as follows
4.2 x 10 = 42
12.6 x 10 = 126
21 x 10 = 210
On finding the LCM of 42,126,210 we get the Least Common Multiple as 630
Least Common Multiple 4.2,12.6,21 is 63
| 2 | 42, 126, 210 |
| 3 | 21, 63, 105 |
| 7 | 7, 21, 35 |
| 1, 3, 5 |
∴ So the LCM of the given numbers is 2 x 3 x 7 x 1 x 3 x 5 = 630
Divide the result you got with the number you multiplied to make it as integer in the first step. In this case, we need to divide by 10 as we used it to make the given numbers into integers.
On dividing the LCM 630/10 we get 63
Thus the Least Common Multiple of 4.2,12.6,21 is 63
Least Common Multiple of 42,126,210 with GCF Formula
The formula of LCM is LCM(a1,a2,a3....,an) = ( a1 × a2 × a3 × .... × an) / GCF(a1,a2,a3....,an) x common factors(if more than 2 numbers have common factors).
We need to calculate greatest common factor of 42,126,210 and common factors if more than two numbers have common factor, than apply into the LCM equation.
GCF(42,126,210) = 42
common factors(in case of two or more numbers have common factors) = 42
GCF(42,126,210) x common factors =42 x 42 = 1764
LCM(42,126,210) = ( 42 × 126 × 210 ) / 1764
LCM(42,126,210) = 1111320 / 1764
LCM(42,126,210) = 630
LCM of Decimals Calculation Examples
Here are some samples of LCM of Decimals calculations.
Frequently Asked Questions on Decimal LCM of 4.2, 12.6, 21
1. What is the LCM of 4.2, 12.6, 21?
Answer: LCM of 4.2, 12.6, 21 is 63.
2. How to Find the LCM of 4.2, 12.6, 21?
Answer: Least Common Factor(LCM) of 4.2, 12.6, 21 = 63
Step 1: First calculate the highest decimal number after decimal point.
Step 2: Then multiply all numbers with 10.
Step 3: Then find LCM of 42,126,210. After getting LCM devide the result with 10 the value that is previously multiplied.
So LCM(4.2, 12.6, 21) = 63.
