GCF of 889/891, 8211/720
Reviewed By : Phani Ponnapalli
Last Updated at : Mar 29,2023
Use our free GCF of Fractions Calculator tool to compute the GCF of 889/891, 8211/720 i.e 7/71280 easily. The following is the detailed procedure to determine the greatest common factor of fractions 889/891, 8211/720.
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 889/891,8211/720?
Given fractions are 889/891,8211/720
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 889/891,8211/720, numerators are 889,8211
Denominators are 891,720
The GCF of 889,8211 is 7 .
LCM of 891,720 is 71280.
The greatest common factor of 889/891,8211/720 = [GCF of 889,8211]/[LCM of 891,720]= 7/71280
Therefore, the GCF of 889/891,8211/720 is 7/71280.
To find the highest common factor of 889,8211, we have to find the factors of both numbers and list the highest common factor.
The factors of 889 are 1, 7, 127, 889
The factors of 8211 are 1, 3, 7, 17, 21, 23, 51, 69, 119, 161, 357, 391, 483, 1173, 2737, 8211
The HCF of 889,8211 is 7.
Lets's calculate GCF of 889,8211
| 7 | 889, 8211 |
| 127, 1173 |
∴ So the GCF of the given numbers is 7 = 7
Greatest Common Factor of 889,8211 By Matching Biggest Common Factor Method
Now, list down the factors of 889
:1,7,127,889
Now, list down the factors of 8211
:1,3,7,17,21,23,51,69,119,161,357,391,483,1173,2737,8211
Greatest Common Factor
We found the factors 889,8211 . The biggest common factor number is the GCF number.
So the greatest common factor 889,8211 is 7.
Lets's calculate LCM of 891,720
| 3 | 891, 720 |
| 3 | 297, 240 |
| 99, 80 |
∴ So the LCM of the given numbers is 3 x 3 x 99 x 80 = 71280
Thus GCF of Fractions = GCF of Numerators/LCM of Denominators = 7/71280
Therefore, the GCF of Fractions 889/891,8211/720 is 7/71280
Least Common Multiple of 891,720 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 891,720 and common factors if more than two numbers have common factor, than apply into the LCM equation.
GCF(891,720) = 9
common factors(in case of two or more numbers have common factors) = 1
GCF(891,720) x common factors =9 x 1 = 9
LCM(891,720) = ( 891 × 720 ) / 9
LCM(891,720) = 641520 / 9
LCM(891,720) = 71280
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FAQs on GCF of Fractions of 889/891, 8211/720
1. What is the HCF of 889,8211?
The HCF of 889,8211 is 7
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 889/891, 8211/720?
Answer: GCF of Numerators as per given numbers 889/891, 8211/720 is
GCF of Numerators i.e. for 889,8211 is 7
LCM of denominators i.e. for 891,720 is 71280.
Thus, GCF of Fractions is 7/71280.Finally, GCF of Fractions for 889/891, 8211/720 is 7/71280.