Use our free GCF of Fractions Calculator tool to compute the GCF of 685/909, 430/245 i.e 5/222705 easily. The following is the detailed procedure to determine the greatest common factor of fractions 685/909, 430/245.
Enter two or more fractions separated by "commas"
Ex: 2/3, 5/7 or 3/5, 5/9, 7/3
Given fractions are 685/909,430/245
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 685/909,430/245, numerators are 685,430
Denominators are 909,245
The GCF of 685,430 is 5 .
LCM of 909,245 is 222705.
The greatest common factor of 685/909,430/245 = [GCF of 685,430]/[LCM of 909,245]= 5/222705
Therefore, the GCF of 685/909,430/245 is 5/222705.
To find the highest common factor of 685,430, we have to find the factors of both numbers and list the highest common factor.
The factors of 685 are 1, 5, 137, 685
The factors of 430 are 1, 2, 5, 10, 43, 86, 215, 430
The HCF of 685,430 is 5.
Lets's calculate GCF of 685,430
5 | 685, 430 |
137, 86 |
∴ So the GCF of the given numbers is 5 = 5
Now, list down the factors of 685
:1,5,137,685
Now, list down the factors of 430
:1,2,5,10,43,86,215,430
Greatest Common Factor
We found the factors 685,430 . The biggest common factor number is the GCF number.
So the greatest common factor 685,430 is 5.
Lets's calculate LCM of 909,245
Given numbers has no common factors except 1. So, there LCM is their product i.e 222705
Thus GCF of Fractions = GCF of Numerators/LCM of Denominators = 5/222705
Therefore, the GCF of Fractions 685/909,430/245 is 5/222705
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 909,245 and common factors if more than two numbers have common factor, than apply into the LCM equation.
GCF(909,245) = 1
common factors(in case of two or more numbers have common factors) = 1
GCF(909,245) x common factors =1 x 1 = 1
LCM(909,245) = ( 909 × 245 ) / 1
LCM(909,245) = 222705 / 1
LCM(909,245) = 222705
Here are some samples of GCF of Fractions calculations.
1. What is the HCF of 685,430?
The HCF of 685,430 is 5
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 685/909, 430/245?
Answer: GCF of Numerators as per given numbers 685/909, 430/245 is
GCF of Numerators i.e. for 685,430 is 5
LCM of denominators i.e. for 909,245 is 222705.
Thus, GCF of Fractions is 5/222705.Finally, GCF of Fractions for 685/909, 430/245 is 5/222705.