GCF of 12/13, 378/19, 920/470
Reviewed By : Phani Ponnapalli
Last Updated at : Mar 29,2023
Use our free GCF of Fractions Calculator tool to compute the GCF of 12/13, 378/19, 920/470 i.e 2/116090 easily. The following is the detailed procedure to determine the greatest common factor of fractions 12/13, 378/19, 920/470.
Enter two or more fractions separated by "commas"
Ex: 2/3, 5/7 or 3/5, 5/9, 7/3
What is the GCF of 12/13,378/19,920/470?
Given fractions are 12/13,378/19,920/470
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 12/13,378/19,920/470, numerators are 12,378,920
Denominators are 13,19,470
The GCF of 12,378,920 is 2 .
LCM of 13,19,470 is 116090.
The greatest common factor of 12/13,378/19,920/470 = [GCF of 12,378,920]/[LCM of 13,19,470]= 2/116090
Therefore, the GCF of 12/13,378/19,920/470 is 2/116090.
To find the highest common factor of 12,378,920, we have to find the factors of both numbers and list the highest common factor.
The factors of 12 are 1, 2, 3, 4, 6, 12
The factors of 378 are 1, 2, 3, 6, 7, 9, 14, 18, 21, 27, 42, 54, 63, 126, 189, 378
The factors of 920 are 1, 2, 4, 5, 8, 10, 20, 23, 40, 46, 92, 115, 184, 230, 460, 920
The HCF of 12,378,920 is 2.
Lets's calculate GCF of 12,378,920
| 2 | 12, 378, 920 |
| 6, 189, 460 |
∴ So the GCF of the given numbers is 2 = 2
Greatest Common Factor of 12,378,920 By Matching Biggest Common Factor Method
Now, list down the factors of 12
:1,2,3,4,6,12
Now, list down the factors of 378
:1,2,3,6,7,9,14,18,21,27,42,54,63,126,189,378
Now, list down the factors of 920
:1,2,4,5,8,10,20,23,40,46,92,115,184,230,460,920
Greatest Common Factor
We found the factors 12,378,920 . The biggest common factor number is the GCF number.
So the greatest common factor 12,378,920 is 2.
Lets's calculate LCM of 13,19,470
Given numbers has no common factors except 1. So, there LCM is their product i.e 116090
Thus GCF of Fractions = GCF of Numerators/LCM of Denominators = 2/116090
Therefore, the GCF of Fractions 12/13,378/19,920/470 is 2/116090
Least Common Multiple of 13,19,470 with GCF Formula
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 13,19,470 and common factors if more than two numbers have common factor, than apply into the LCM equation.
GCF(13,19,470) = 1
common factors(in case of two or more numbers have common factors) = 1
GCF(13,19,470) x common factors =1 x 1 = 1
LCM(13,19,470) = ( 13 × 19 × 470 ) / 1
LCM(13,19,470) = 116090 / 1
LCM(13,19,470) = 116090
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FAQs on GCF of Fractions of 12/13, 378/19, 920/470
1. What is the HCF of 12,378,920?
The HCF of 12,378,920 is 2
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 12/13, 378/19, 920/470?
Answer: GCF of Numerators as per given numbers 12/13, 378/19, 920/470 is
GCF of Numerators i.e. for 12,378,920 is 2
LCM of denominators i.e. for 13,19,470 is 116090.
Thus, GCF of Fractions is 2/116090.Finally, GCF of Fractions for 12/13, 378/19, 920/470 is 2/116090.