Use our free GCF of Fractions Calculator tool to compute the GCF of 240/428, 689/680 i.e 1/72760 easily. The following is the detailed procedure to determine the greatest common factor of fractions 240/428, 689/680.
Enter two or more fractions separated by "commas"
Ex: 2/3, 5/7 or 3/5, 5/9, 7/3
Given fractions are 240/428,689/680
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 240/428,689/680, numerators are 240,689
Denominators are 428,680
The GCF of 240,689 is 1 .
LCM of 428,680 is 72760.
The greatest common factor of 240/428,689/680 = [GCF of 240,689]/[LCM of 428,680]= 1/72760
Therefore, the GCF of 240/428,689/680 is 1/72760.
To find the highest common factor of 240,689, we have to find the factors of both numbers and list the highest common factor.
The factors of 240 are 1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240
The factors of 689 are 1, 13, 53, 689
The HCF of 240,689 is 1.
Lets's calculate GCF of 240,689
∴ So GCF of numbers is 1 because of no common factors present between them.
Now, list down the factors of 240
:1,2,3,4,5,6,8,10,12,15,16,20,24,30,40,48,60,80,120,240
Now, list down the factors of 689
:1,13,53,689
Greatest Common Factor
We found the factors 240,689 . The biggest common factor number is the GCF number.
So the greatest common factor 240,689 is 1.
Lets's calculate LCM of 428,680
2 | 428, 680 |
2 | 214, 340 |
107, 170 |
∴ So the LCM of the given numbers is 2 x 2 x 107 x 170 = 72760
Thus GCF of Fractions = GCF of Numerators/LCM of Denominators = 1/72760
Therefore, the GCF of Fractions 240/428,689/680 is 1/72760
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 428,680 and common factors if more than two numbers have common factor, than apply into the LCM equation.
GCF(428,680) = 4
common factors(in case of two or more numbers have common factors) = 1
GCF(428,680) x common factors =4 x 1 = 4
LCM(428,680) = ( 428 × 680 ) / 4
LCM(428,680) = 291040 / 4
LCM(428,680) = 72760
Here are some samples of GCF of Fractions calculations.
1. What is the HCF of 240,689?
The HCF of 240,689 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 240/428, 689/680?
Answer: GCF of Numerators as per given numbers 240/428, 689/680 is
GCF of Numerators i.e. for 240,689 is 1
LCM of denominators i.e. for 428,680 is 72760.
Thus, GCF of Fractions is 1/72760.Finally, GCF of Fractions for 240/428, 689/680 is 1/72760.