Use our free GCF of Fractions Calculator tool to compute the GCF of 221/378, 8255/8420 i.e 13/1591380 easily. The following is the detailed procedure to determine the greatest common factor of fractions 221/378, 8255/8420.
Enter two or more fractions separated by "commas"
Ex: 2/3, 5/7 or 3/5, 5/9, 7/3
Given fractions are 221/378,8255/8420
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 221/378,8255/8420, numerators are 221,8255
Denominators are 378,8420
The GCF of 221,8255 is 13 .
LCM of 378,8420 is 1591380.
The greatest common factor of 221/378,8255/8420 = [GCF of 221,8255]/[LCM of 378,8420]= 13/1591380
Therefore, the GCF of 221/378,8255/8420 is 13/1591380.
To find the highest common factor of 221,8255, we have to find the factors of both numbers and list the highest common factor.
The factors of 221 are 1, 13, 17, 221
The factors of 8255 are 1, 5, 13, 65, 127, 635, 1651, 8255
The HCF of 221,8255 is 13.
Lets's calculate GCF of 221,8255
13 | 221, 8255 |
17, 635 |
∴ So the GCF of the given numbers is 13 = 13
Now, list down the factors of 221
:1,13,17,221
Now, list down the factors of 8255
:1,5,13,65,127,635,1651,8255
Greatest Common Factor
We found the factors 221,8255 . The biggest common factor number is the GCF number.
So the greatest common factor 221,8255 is 13.
Lets's calculate LCM of 378,8420
2 | 378, 8420 |
189, 4210 |
∴ So the LCM of the given numbers is 2 x 189 x 4210 = 1591380
Thus GCF of Fractions = GCF of Numerators/LCM of Denominators = 13/1591380
Therefore, the GCF of Fractions 221/378,8255/8420 is 13/1591380
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 378,8420 and common factors if more than two numbers have common factor, than apply into the LCM equation.
GCF(378,8420) = 2
common factors(in case of two or more numbers have common factors) = 1
GCF(378,8420) x common factors =2 x 1 = 2
LCM(378,8420) = ( 378 × 8420 ) / 2
LCM(378,8420) = 3182760 / 2
LCM(378,8420) = 1591380
Here are some samples of GCF of Fractions calculations.
1. What is the HCF of 221,8255?
The HCF of 221,8255 is 13
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 221/378, 8255/8420?
Answer: GCF of Numerators as per given numbers 221/378, 8255/8420 is
GCF of Numerators i.e. for 221,8255 is 13
LCM of denominators i.e. for 378,8420 is 1591380.
Thus, GCF of Fractions is 13/1591380.Finally, GCF of Fractions for 221/378, 8255/8420 is 13/1591380.