Use our free GCF of Fractions Calculator tool to compute the GCF of 19/28, 858/30, 688/372 i.e 1/13020 easily. The following is the detailed procedure to determine the greatest common factor of fractions 19/28, 858/30, 688/372.
Enter two or more fractions separated by "commas"
Ex: 2/3, 5/7 or 3/5, 5/9, 7/3
Given fractions are 19/28,858/30,688/372
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 19/28,858/30,688/372, numerators are 19,858,688
Denominators are 28,30,372
The GCF of 19,858,688 is 1 .
LCM of 28,30,372 is 13020.
The greatest common factor of 19/28,858/30,688/372 = [GCF of 19,858,688]/[LCM of 28,30,372]= 1/13020
Therefore, the GCF of 19/28,858/30,688/372 is 1/13020.
To find the highest common factor of 19,858,688, we have to find the factors of both numbers and list the highest common factor.
The factors of 19 are 1, 19
The factors of 858 are 1, 2, 3, 6, 11, 13, 22, 26, 33, 39, 66, 78, 143, 286, 429, 858
The factors of 688 are 1, 2, 4, 8, 16, 43, 86, 172, 344, 688
The HCF of 19,858,688 is 1.
Lets's calculate GCF of 19,858,688
∴ So GCF of numbers is 1 because of no common factors present between them.
Now, list down the factors of 19
:1,19
Now, list down the factors of 858
:1,2,3,6,11,13,22,26,33,39,66,78,143,286,429,858
Now, list down the factors of 688
:1,2,4,8,16,43,86,172,344,688
Greatest Common Factor
We found the factors 19,858,688 . The biggest common factor number is the GCF number.
So the greatest common factor 19,858,688 is 1.
Lets's calculate LCM of 28,30,372
2 | 28, 30, 372 |
2 | 14, 15, 186 |
3 | 7, 15, 93 |
7, 5, 31 |
∴ So the LCM of the given numbers is 2 x 2 x 3 x 7 x 5 x 31 = 13020
Thus GCF of Fractions = GCF of Numerators/LCM of Denominators = 1/13020
Therefore, the GCF of Fractions 19/28,858/30,688/372 is 1/13020
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 28,30,372 and common factors if more than two numbers have common factor, than apply into the LCM equation.
GCF(28,30,372) = 2
common factors(in case of two or more numbers have common factors) = 12
GCF(28,30,372) x common factors =2 x 12 = 24
LCM(28,30,372) = ( 28 × 30 × 372 ) / 24
LCM(28,30,372) = 312480 / 24
LCM(28,30,372) = 13020
Here are some samples of GCF of Fractions calculations.
1. What is the HCF of 19,858,688?
The HCF of 19,858,688 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 19/28, 858/30, 688/372?
Answer: GCF of Numerators as per given numbers 19/28, 858/30, 688/372 is
GCF of Numerators i.e. for 19,858,688 is 1
LCM of denominators i.e. for 28,30,372 is 13020.
Thus, GCF of Fractions is 1/13020.Finally, GCF of Fractions for 19/28, 858/30, 688/372 is 1/13020.