Use our free GCF of Fractions Calculator tool to compute the GCF of 990/320, 280/639 i.e 10/204480 easily. The following is the detailed procedure to determine the greatest common factor of fractions 990/320, 280/639.
Enter two or more fractions separated by "commas"
Ex: 2/3, 5/7 or 3/5, 5/9, 7/3
Given fractions are 990/320,280/639
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 990/320,280/639, numerators are 990,280
Denominators are 320,639
The GCF of 990,280 is 10 .
LCM of 320,639 is 204480.
The greatest common factor of 990/320,280/639 = [GCF of 990,280]/[LCM of 320,639]= 10/204480
Therefore, the GCF of 990/320,280/639 is 10/204480.
To find the highest common factor of 990,280, we have to find the factors of both numbers and list the highest common factor.
The factors of 990 are 1, 2, 3, 5, 6, 9, 10, 11, 15, 18, 22, 30, 33, 45, 55, 66, 90, 99, 110, 165, 198, 330, 495, 990
The factors of 280 are 1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280
The HCF of 990,280 is 10.
Lets's calculate GCF of 990,280
2 | 990, 280 |
5 | 495, 140 |
99, 28 |
∴ So the GCF of the given numbers is 2 x 5 = 10
Now, list down the factors of 990
:1,2,3,5,6,9,10,11,15,18,22,30,33,45,55,66,90,99,110,165,198,330,495,990
Now, list down the factors of 280
:1,2,4,5,7,8,10,14,20,28,35,40,56,70,140,280
Greatest Common Factor
We found the factors 990,280 . The biggest common factor number is the GCF number.
So the greatest common factor 990,280 is 10.
Lets's calculate LCM of 320,639
Given numbers has no common factors except 1. So, there LCM is their product i.e 204480
Thus GCF of Fractions = GCF of Numerators/LCM of Denominators = 10/204480
Therefore, the GCF of Fractions 990/320,280/639 is 10/204480
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 320,639 and common factors if more than two numbers have common factor, than apply into the LCM equation.
GCF(320,639) = 1
common factors(in case of two or more numbers have common factors) = 1
GCF(320,639) x common factors =1 x 1 = 1
LCM(320,639) = ( 320 × 639 ) / 1
LCM(320,639) = 204480 / 1
LCM(320,639) = 204480
Here are some samples of GCF of Fractions calculations.
1. What is the HCF of 990,280?
The HCF of 990,280 is 10
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 990/320, 280/639?
Answer: GCF of Numerators as per given numbers 990/320, 280/639 is
GCF of Numerators i.e. for 990,280 is 10
LCM of denominators i.e. for 320,639 is 204480.
Thus, GCF of Fractions is 10/204480.Finally, GCF of Fractions for 990/320, 280/639 is 10/204480.