GCF of 124/21, 420/451
Reviewed By : Phani Ponnapalli
Last Updated at : Mar 29,2023
Use our free GCF of Fractions Calculator tool to compute the GCF of 124/21, 420/451 i.e 4/9471 easily. The following is the detailed procedure to determine the greatest common factor of fractions 124/21, 420/451.
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 124/21,420/451?
Given fractions are 124/21,420/451
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 124/21,420/451, numerators are 124,420
Denominators are 21,451
The GCF of 124,420 is 4 .
LCM of 21,451 is 9471.
The greatest common factor of 124/21,420/451 = [GCF of 124,420]/[LCM of 21,451]= 4/9471
Therefore, the GCF of 124/21,420/451 is 4/9471.
To find the highest common factor of 124,420, we have to find the factors of both numbers and list the highest common factor.
The factors of 124 are 1, 2, 4, 31, 62, 124
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 HCF of 124,420 is 4.
Lets's calculate GCF of 124,420
| 2 | 124, 420 |
| 2 | 62, 210 |
| 31, 105 |
∴ So the GCF of the given numbers is 2 x 2 = 4
Greatest Common Factor of 124,420 By Matching Biggest Common Factor Method
Now, list down the factors of 124
:1,2,4,31,62,124
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
Greatest Common Factor
We found the factors 124,420 . The biggest common factor number is the GCF number.
So the greatest common factor 124,420 is 4.
Lets's calculate LCM of 21,451
Given numbers has no common factors except 1. So, there LCM is their product i.e 9471
Thus GCF of Fractions = GCF of Numerators/LCM of Denominators = 4/9471
Therefore, the GCF of Fractions 124/21,420/451 is 4/9471
Least Common Multiple of 21,451 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 21,451 and common factors if more than two numbers have common factor, than apply into the LCM equation.
GCF(21,451) = 1
common factors(in case of two or more numbers have common factors) = 1
GCF(21,451) x common factors =1 x 1 = 1
LCM(21,451) = ( 21 × 451 ) / 1
LCM(21,451) = 9471 / 1
LCM(21,451) = 9471
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FAQs on GCF of Fractions of 124/21, 420/451
1. What is the HCF of 124,420?
The HCF of 124,420 is 4
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 124/21, 420/451?
Answer: GCF of Numerators as per given numbers 124/21, 420/451 is
GCF of Numerators i.e. for 124,420 is 4
LCM of denominators i.e. for 21,451 is 9471.
Thus, GCF of Fractions is 4/9471.Finally, GCF of Fractions for 124/21, 420/451 is 4/9471.