Use our free GCF of Fractions Calculator tool to compute the GCF of 68/90, 997/57, 947/171 i.e 1/1710 easily. The following is the detailed procedure to determine the greatest common factor of fractions 68/90, 997/57, 947/171.
Enter two or more fractions separated by "commas"
Ex: 2/3, 5/7 or 3/5, 5/9, 7/3
Given fractions are 68/90,997/57,947/171
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 68/90,997/57,947/171, numerators are 68,997,947
Denominators are 90,57,171
The GCF of 68,997,947 is 1 .
LCM of 90,57,171 is 1710.
The greatest common factor of 68/90,997/57,947/171 = [GCF of 68,997,947]/[LCM of 90,57,171]= 1/1710
Therefore, the GCF of 68/90,997/57,947/171 is 1/1710.
To find the highest common factor of 68,997,947, we have to find the factors of both numbers and list the highest common factor.
The factors of 68 are 1, 2, 4, 17, 34, 68
The factors of 997 are 1, 997
The factors of 947 are 1, 947
The HCF of 68,997,947 is 1.
Lets's calculate GCF of 68,997,947
∴ So GCF of numbers is 1 because of no common factors present between them.
Now, list down the factors of 68
:1,2,4,17,34,68
Now, list down the factors of 997
:1,997
Now, list down the factors of 947
:1,947
Greatest Common Factor
We found the factors 68,997,947 . The biggest common factor number is the GCF number.
So the greatest common factor 68,997,947 is 1.
Lets's calculate LCM of 90,57,171
3 | 90, 57, 171 |
3 | 30, 19, 57 |
19 | 10, 19, 19 |
10, 1, 1 |
∴ So the LCM of the given numbers is 3 x 3 x 19 x 10 x 1 x 1 = 1710
Thus GCF of Fractions = GCF of Numerators/LCM of Denominators = 1/1710
Therefore, the GCF of Fractions 68/90,997/57,947/171 is 1/1710
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 90,57,171 and common factors if more than two numbers have common factor, than apply into the LCM equation.
GCF(90,57,171) = 3
common factors(in case of two or more numbers have common factors) = 171
GCF(90,57,171) x common factors =3 x 171 = 513
LCM(90,57,171) = ( 90 × 57 × 171 ) / 513
LCM(90,57,171) = 877230 / 513
LCM(90,57,171) = 1710
Here are some samples of GCF of Fractions calculations.
1. What is the HCF of 68,997,947?
The HCF of 68,997,947 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 68/90, 997/57, 947/171?
Answer: GCF of Numerators as per given numbers 68/90, 997/57, 947/171 is
GCF of Numerators i.e. for 68,997,947 is 1
LCM of denominators i.e. for 90,57,171 is 1710.
Thus, GCF of Fractions is 1/1710.Finally, GCF of Fractions for 68/90, 997/57, 947/171 is 1/1710.