Use our free GCF of Fractions Calculator tool to compute the GCF of 457/680, 1191/661 i.e 1/449480 easily. The following is the detailed procedure to determine the greatest common factor of fractions 457/680, 1191/661.
Enter two or more fractions separated by "commas"
Ex: 2/3, 5/7 or 3/5, 5/9, 7/3
Given fractions are 457/680,1191/661
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 457/680,1191/661, numerators are 457,1191
Denominators are 680,661
The GCF of 457,1191 is 1 .
LCM of 680,661 is 449480.
The greatest common factor of 457/680,1191/661 = [GCF of 457,1191]/[LCM of 680,661]= 1/449480
Therefore, the GCF of 457/680,1191/661 is 1/449480.
To find the highest common factor of 457,1191, we have to find the factors of both numbers and list the highest common factor.
The factors of 457 are 1, 457
The factors of 1191 are 1, 3, 397, 1191
The HCF of 457,1191 is 1.
Lets's calculate GCF of 457,1191
∴ So GCF of numbers is 1 because of no common factors present between them.
Now, list down the factors of 457
:1,457
Now, list down the factors of 1191
:1,3,397,1191
Greatest Common Factor
We found the factors 457,1191 . The biggest common factor number is the GCF number.
So the greatest common factor 457,1191 is 1.
Lets's calculate LCM of 680,661
Given numbers has no common factors except 1. So, there LCM is their product i.e 449480
Thus GCF of Fractions = GCF of Numerators/LCM of Denominators = 1/449480
Therefore, the GCF of Fractions 457/680,1191/661 is 1/449480
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 680,661 and common factors if more than two numbers have common factor, than apply into the LCM equation.
GCF(680,661) = 1
common factors(in case of two or more numbers have common factors) = 1
GCF(680,661) x common factors =1 x 1 = 1
LCM(680,661) = ( 680 × 661 ) / 1
LCM(680,661) = 449480 / 1
LCM(680,661) = 449480
Here are some samples of GCF of Fractions calculations.
1. What is the HCF of 457,1191?
The HCF of 457,1191 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 457/680, 1191/661?
Answer: GCF of Numerators as per given numbers 457/680, 1191/661 is
GCF of Numerators i.e. for 457,1191 is 1
LCM of denominators i.e. for 680,661 is 449480.
Thus, GCF of Fractions is 1/449480.Finally, GCF of Fractions for 457/680, 1191/661 is 1/449480.