GCF of 821/417, 612/420
Reviewed By : Phani Ponnapalli
Last Updated at : Mar 29,2023
Use our free GCF of Fractions Calculator tool to compute the GCF of 821/417, 612/420 i.e 1/58380 easily. The following is the detailed procedure to determine the greatest common factor of fractions 821/417, 612/420.
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 821/417,612/420?
Given fractions are 821/417,612/420
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 821/417,612/420, numerators are 821,612
Denominators are 417,420
The GCF of 821,612 is 1 .
LCM of 417,420 is 58380.
The greatest common factor of 821/417,612/420 = [GCF of 821,612]/[LCM of 417,420]= 1/58380
Therefore, the GCF of 821/417,612/420 is 1/58380.
To find the highest common factor of 821,612, we have to find the factors of both numbers and list the highest common factor.
The factors of 821 are 1, 821
The factors of 612 are 1, 2, 3, 4, 6, 9, 12, 17, 18, 34, 36, 51, 68, 102, 153, 204, 306, 612
The HCF of 821,612 is 1.
Lets's calculate GCF of 821,612
∴ So GCF of numbers is 1 because of no common factors present between them.
Greatest Common Factor of 821,612 By Matching Biggest Common Factor Method
Now, list down the factors of 821
:1,821
Now, list down the factors of 612
:1,2,3,4,6,9,12,17,18,34,36,51,68,102,153,204,306,612
Greatest Common Factor
We found the factors 821,612 . The biggest common factor number is the GCF number.
So the greatest common factor 821,612 is 1.
Lets's calculate LCM of 417,420
| 3 | 417, 420 |
| 139, 140 |
∴ So the LCM of the given numbers is 3 x 139 x 140 = 58380
Thus GCF of Fractions = GCF of Numerators/LCM of Denominators = 1/58380
Therefore, the GCF of Fractions 821/417,612/420 is 1/58380
Least Common Multiple of 417,420 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 417,420 and common factors if more than two numbers have common factor, than apply into the LCM equation.
GCF(417,420) = 3
common factors(in case of two or more numbers have common factors) = 1
GCF(417,420) x common factors =3 x 1 = 3
LCM(417,420) = ( 417 × 420 ) / 3
LCM(417,420) = 175140 / 3
LCM(417,420) = 58380
GCF of Fractions Calculation Examples
Here are some samples of GCF of Fractions calculations.
FAQs on GCF of Fractions of 821/417, 612/420
1. What is the HCF of 821,612?
The HCF of 821,612 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 821/417, 612/420?
Answer: GCF of Numerators as per given numbers 821/417, 612/420 is
GCF of Numerators i.e. for 821,612 is 1
LCM of denominators i.e. for 417,420 is 58380.
Thus, GCF of Fractions is 1/58380.Finally, GCF of Fractions for 821/417, 612/420 is 1/58380.