Use our free GCF of Fractions Calculator tool to compute the GCF of 217/431, 158/688 i.e 1/296528 easily. The following is the detailed procedure to determine the greatest common factor of fractions 217/431, 158/688.
Enter two or more fractions separated by "commas"
Ex: 2/3, 5/7 or 3/5, 5/9, 7/3
Given fractions are 217/431,158/688
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 217/431,158/688, numerators are 217,158
Denominators are 431,688
The GCF of 217,158 is 1 .
LCM of 431,688 is 296528.
The greatest common factor of 217/431,158/688 = [GCF of 217,158]/[LCM of 431,688]= 1/296528
Therefore, the GCF of 217/431,158/688 is 1/296528.
To find the highest common factor of 217,158, we have to find the factors of both numbers and list the highest common factor.
The factors of 217 are 1, 7, 31, 217
The factors of 158 are 1, 2, 79, 158
The HCF of 217,158 is 1.
Lets's calculate GCF of 217,158
∴ So GCF of numbers is 1 because of no common factors present between them.
Now, list down the factors of 217
:1,7,31,217
Now, list down the factors of 158
:1,2,79,158
Greatest Common Factor
We found the factors 217,158 . The biggest common factor number is the GCF number.
So the greatest common factor 217,158 is 1.
Lets's calculate LCM of 431,688
Given numbers has no common factors except 1. So, there LCM is their product i.e 296528
Thus GCF of Fractions = GCF of Numerators/LCM of Denominators = 1/296528
Therefore, the GCF of Fractions 217/431,158/688 is 1/296528
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 431,688 and common factors if more than two numbers have common factor, than apply into the LCM equation.
GCF(431,688) = 1
common factors(in case of two or more numbers have common factors) = 1
GCF(431,688) x common factors =1 x 1 = 1
LCM(431,688) = ( 431 × 688 ) / 1
LCM(431,688) = 296528 / 1
LCM(431,688) = 296528
Here are some samples of GCF of Fractions calculations.
1. What is the HCF of 217,158?
The HCF of 217,158 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 217/431, 158/688?
Answer: GCF of Numerators as per given numbers 217/431, 158/688 is
GCF of Numerators i.e. for 217,158 is 1
LCM of denominators i.e. for 431,688 is 296528.
Thus, GCF of Fractions is 1/296528.Finally, GCF of Fractions for 217/431, 158/688 is 1/296528.