GCF of 69/85, 17/75, 666/921
Reviewed By : Phani Ponnapalli
Last Updated at : Mar 29,2023
Use our free GCF of Fractions Calculator tool to compute the GCF of 69/85, 17/75, 666/921 i.e 1/391425 easily. The following is the detailed procedure to determine the greatest common factor of fractions 69/85, 17/75, 666/921.
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 69/85,17/75,666/921?
Given fractions are 69/85,17/75,666/921
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 69/85,17/75,666/921, numerators are 69,17,666
Denominators are 85,75,921
The GCF of 69,17,666 is 1 .
LCM of 85,75,921 is 391425.
The greatest common factor of 69/85,17/75,666/921 = [GCF of 69,17,666]/[LCM of 85,75,921]= 1/391425
Therefore, the GCF of 69/85,17/75,666/921 is 1/391425.
To find the highest common factor of 69,17,666, we have to find the factors of both numbers and list the highest common factor.
The factors of 69 are 1, 3, 23, 69
The factors of 17 are 1, 17
The factors of 666 are 1, 2, 3, 6, 9, 18, 37, 74, 111, 222, 333, 666
The HCF of 69,17,666 is 1.
Lets's calculate GCF of 69,17,666
∴ So GCF of numbers is 1 because of no common factors present between them.
Greatest Common Factor of 69,17,666 By Matching Biggest Common Factor Method
Now, list down the factors of 69
:1,3,23,69
Now, list down the factors of 17
:1,17
Now, list down the factors of 666
:1,2,3,6,9,18,37,74,111,222,333,666
Greatest Common Factor
We found the factors 69,17,666 . The biggest common factor number is the GCF number.
So the greatest common factor 69,17,666 is 1.
Lets's calculate LCM of 85,75,921
| 3 | 85, 75, 921 |
| 5 | 85, 25, 307 |
| 17, 5, 307 |
∴ So the LCM of the given numbers is 3 x 5 x 17 x 5 x 307 = 391425
Thus GCF of Fractions = GCF of Numerators/LCM of Denominators = 1/391425
Therefore, the GCF of Fractions 69/85,17/75,666/921 is 1/391425
Least Common Multiple of 85,75,921 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 85,75,921 and common factors if more than two numbers have common factor, than apply into the LCM equation.
GCF(85,75,921) = 1
common factors(in case of two or more numbers have common factors) = 15
GCF(85,75,921) x common factors =1 x 15 = 15
LCM(85,75,921) = ( 85 × 75 × 921 ) / 15
LCM(85,75,921) = 5871375 / 15
LCM(85,75,921) = 391425
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FAQs on GCF of Fractions of 69/85, 17/75, 666/921
1. What is the HCF of 69,17,666?
The HCF of 69,17,666 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 69/85, 17/75, 666/921?
Answer: GCF of Numerators as per given numbers 69/85, 17/75, 666/921 is
GCF of Numerators i.e. for 69,17,666 is 1
LCM of denominators i.e. for 85,75,921 is 391425.
Thus, GCF of Fractions is 1/391425.Finally, GCF of Fractions for 69/85, 17/75, 666/921 is 1/391425.