Use our free GCF of Fractions Calculator tool to compute the GCF of 155/873, 642/905 i.e 1/790065 easily. The following is the detailed procedure to determine the greatest common factor of fractions 155/873, 642/905.
Enter two or more fractions separated by "commas"
Ex: 2/3, 5/7 or 3/5, 5/9, 7/3
Given fractions are 155/873,642/905
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 155/873,642/905, numerators are 155,642
Denominators are 873,905
The GCF of 155,642 is 1 .
LCM of 873,905 is 790065.
The greatest common factor of 155/873,642/905 = [GCF of 155,642]/[LCM of 873,905]= 1/790065
Therefore, the GCF of 155/873,642/905 is 1/790065.
To find the highest common factor of 155,642, we have to find the factors of both numbers and list the highest common factor.
The factors of 155 are 1, 5, 31, 155
The factors of 642 are 1, 2, 3, 6, 107, 214, 321, 642
The HCF of 155,642 is 1.
Lets's calculate GCF of 155,642
∴ So GCF of numbers is 1 because of no common factors present between them.
Now, list down the factors of 155
:1,5,31,155
Now, list down the factors of 642
:1,2,3,6,107,214,321,642
Greatest Common Factor
We found the factors 155,642 . The biggest common factor number is the GCF number.
So the greatest common factor 155,642 is 1.
Lets's calculate LCM of 873,905
Given numbers has no common factors except 1. So, there LCM is their product i.e 790065
Thus GCF of Fractions = GCF of Numerators/LCM of Denominators = 1/790065
Therefore, the GCF of Fractions 155/873,642/905 is 1/790065
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 873,905 and common factors if more than two numbers have common factor, than apply into the LCM equation.
GCF(873,905) = 1
common factors(in case of two or more numbers have common factors) = 1
GCF(873,905) x common factors =1 x 1 = 1
LCM(873,905) = ( 873 × 905 ) / 1
LCM(873,905) = 790065 / 1
LCM(873,905) = 790065
Here are some samples of GCF of Fractions calculations.
1. What is the HCF of 155,642?
The HCF of 155,642 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 155/873, 642/905?
Answer: GCF of Numerators as per given numbers 155/873, 642/905 is
GCF of Numerators i.e. for 155,642 is 1
LCM of denominators i.e. for 873,905 is 790065.
Thus, GCF of Fractions is 1/790065.Finally, GCF of Fractions for 155/873, 642/905 is 1/790065.