GCF of 420/554, 242/197, 821/742
Reviewed By : Phani Ponnapalli
Last Updated at : Mar 29,2023
Use our free GCF of Fractions Calculator tool to compute the GCF of 420/554, 242/197, 821/742 i.e 1/40490198 easily. The following is the detailed procedure to determine the greatest common factor of fractions 420/554, 242/197, 821/742.
Enter two or more fractions separated by "commas"
Ex: 2/3, 5/7 or 3/5, 5/9, 7/3
What is the GCF of 420/554,242/197,821/742?
Given fractions are 420/554,242/197,821/742
To find the GCF of fractions, we have to find the GCF of numerator numbers and LCM of denominator numbers. Its formula is given by
GCF of Fraction = Greatest Common Factor of Numerator/Least Common Multiple of Denominators
In the fractions 420/554,242/197,821/742, numerators are 420,242,821
Denominators are 554,197,742
The GCF of 420,242,821 is 1 .
LCM of 554,197,742 is 40490198.
The greatest common factor of 420/554,242/197,821/742 = [GCF of 420,242,821]/[LCM of 554,197,742]= 1/40490198
Therefore, the GCF of 420/554,242/197,821/742 is 1/40490198.
To find the highest common factor of 420,242,821, we have to find the factors of both numbers and list the highest common factor.
The factors of 420 are 1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420
The factors of 242 are 1, 2, 11, 22, 121, 242
The factors of 821 are 1, 821
The HCF of 420,242,821 is 1.
Lets's calculate GCF of 420,242,821
∴ So GCF of numbers is 1 because of no common factors present between them.
Greatest Common Factor of 420,242,821 By Matching Biggest Common Factor Method
Now, list down the factors of 420
:1,2,3,4,5,6,7,10,12,14,15,20,21,28,30,35,42,60,70,84,105,140,210,420
Now, list down the factors of 242
:1,2,11,22,121,242
Now, list down the factors of 821
:1,821
Greatest Common Factor
We found the factors 420,242,821 . The biggest common factor number is the GCF number.
So the greatest common factor 420,242,821 is 1.
Lets's calculate LCM of 554,197,742
| 2 | 554, 197, 742 |
| 277, 197, 371 |
∴ So the LCM of the given numbers is 2 x 277 x 197 x 371 = 40490198
Thus GCF of Fractions = GCF of Numerators/LCM of Denominators = 1/40490198
Therefore, the GCF of Fractions 420/554,242/197,821/742 is 1/40490198
Least Common Multiple of 554,197,742 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 554,197,742 and common factors if more than two numbers have common factor, than apply into the LCM equation.
GCF(554,197,742) = 1
common factors(in case of two or more numbers have common factors) = 2
GCF(554,197,742) x common factors =1 x 2 = 2
LCM(554,197,742) = ( 554 × 197 × 742 ) / 2
LCM(554,197,742) = 80980396 / 2
LCM(554,197,742) = 40490198
GCF of Fractions Calculation Examples
Here are some samples of GCF of Fractions calculations.
FAQs on GCF of Fractions of 420/554, 242/197, 821/742
1. What is the HCF of 420,242,821?
The HCF of 420,242,821 is 1
2. What is the GCF of a fraction?
The GCF of a fraction is defined as the greatest fraction that divides exactly into 2 or more fractions.
3. How to find GCF in Fractions?
Answer: GCF of fractions can be found using the simple formula GCF of Fractions = GCF of Numerators/LCM of Denominators.
4. What is the GCF of Fractions for 420/554, 242/197, 821/742?
Answer: GCF of Numerators as per given numbers 420/554, 242/197, 821/742 is
GCF of Numerators i.e. for 420,242,821 is 1
LCM of denominators i.e. for 554,197,742 is 40490198.
Thus, GCF of Fractions is 1/40490198.Finally, GCF of Fractions for 420/554, 242/197, 821/742 is 1/40490198.