GCF of 830/21, 638/667
Reviewed By : Phani Ponnapalli
Last Updated at : Mar 29,2023
Use our free GCF of Fractions Calculator tool to compute the GCF of 830/21, 638/667 i.e 2/14007 easily. The following is the detailed procedure to determine the greatest common factor of fractions 830/21, 638/667.
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 830/21,638/667?
Given fractions are 830/21,638/667
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 830/21,638/667, numerators are 830,638
Denominators are 21,667
The GCF of 830,638 is 2 .
LCM of 21,667 is 14007.
The greatest common factor of 830/21,638/667 = [GCF of 830,638]/[LCM of 21,667]= 2/14007
Therefore, the GCF of 830/21,638/667 is 2/14007.
To find the highest common factor of 830,638, we have to find the factors of both numbers and list the highest common factor.
The factors of 830 are 1, 2, 5, 10, 83, 166, 415, 830
The factors of 638 are 1, 2, 11, 22, 29, 58, 319, 638
The HCF of 830,638 is 2.
Lets's calculate GCF of 830,638
| 2 | 830, 638 |
| 415, 319 |
∴ So the GCF of the given numbers is 2 = 2
Greatest Common Factor of 830,638 By Matching Biggest Common Factor Method
Now, list down the factors of 830
:1,2,5,10,83,166,415,830
Now, list down the factors of 638
:1,2,11,22,29,58,319,638
Greatest Common Factor
We found the factors 830,638 . The biggest common factor number is the GCF number.
So the greatest common factor 830,638 is 2.
Lets's calculate LCM of 21,667
Given numbers has no common factors except 1. So, there LCM is their product i.e 14007
Thus GCF of Fractions = GCF of Numerators/LCM of Denominators = 2/14007
Therefore, the GCF of Fractions 830/21,638/667 is 2/14007
Least Common Multiple of 21,667 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 21,667 and common factors if more than two numbers have common factor, than apply into the LCM equation.
GCF(21,667) = 1
common factors(in case of two or more numbers have common factors) = 1
GCF(21,667) x common factors =1 x 1 = 1
LCM(21,667) = ( 21 × 667 ) / 1
LCM(21,667) = 14007 / 1
LCM(21,667) = 14007
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FAQs on GCF of Fractions of 830/21, 638/667
1. What is the HCF of 830,638?
The HCF of 830,638 is 2
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 830/21, 638/667?
Answer: GCF of Numerators as per given numbers 830/21, 638/667 is
GCF of Numerators i.e. for 830,638 is 2
LCM of denominators i.e. for 21,667 is 14007.
Thus, GCF of Fractions is 2/14007.Finally, GCF of Fractions for 830/21, 638/667 is 2/14007.