GCF of 155/15, 640/787
Reviewed By : Phani Ponnapalli
Last Updated at : Mar 29,2023
Use our free GCF of Fractions Calculator tool to compute the GCF of 155/15, 640/787 i.e 5/11805 easily. The following is the detailed procedure to determine the greatest common factor of fractions 155/15, 640/787.
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 155/15,640/787?
Given fractions are 155/15,640/787
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 155/15,640/787, numerators are 155,640
Denominators are 15,787
The GCF of 155,640 is 5 .
LCM of 15,787 is 11805.
The greatest common factor of 155/15,640/787 = [GCF of 155,640]/[LCM of 15,787]= 5/11805
Therefore, the GCF of 155/15,640/787 is 5/11805.
To find the highest common factor of 155,640, we have to find the factors of both numbers and list the highest common factor.
The factors of 155 are 1, 5, 31, 155
The factors of 640 are 1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640
The HCF of 155,640 is 5.
Lets's calculate GCF of 155,640
| 5 | 155, 640 |
| 31, 128 |
∴ So the GCF of the given numbers is 5 = 5
Greatest Common Factor of 155,640 By Matching Biggest Common Factor Method
Now, list down the factors of 155
:1,5,31,155
Now, list down the factors of 640
:1,2,4,5,8,10,16,20,32,40,64,80,128,160,320,640
Greatest Common Factor
We found the factors 155,640 . The biggest common factor number is the GCF number.
So the greatest common factor 155,640 is 5.
Lets's calculate LCM of 15,787
Given numbers has no common factors except 1. So, there LCM is their product i.e 11805
Thus GCF of Fractions = GCF of Numerators/LCM of Denominators = 5/11805
Therefore, the GCF of Fractions 155/15,640/787 is 5/11805
Least Common Multiple of 15,787 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 15,787 and common factors if more than two numbers have common factor, than apply into the LCM equation.
GCF(15,787) = 1
common factors(in case of two or more numbers have common factors) = 1
GCF(15,787) x common factors =1 x 1 = 1
LCM(15,787) = ( 15 × 787 ) / 1
LCM(15,787) = 11805 / 1
LCM(15,787) = 11805
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FAQs on GCF of Fractions of 155/15, 640/787
1. What is the HCF of 155,640?
The HCF of 155,640 is 5
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 155/15, 640/787?
Answer: GCF of Numerators as per given numbers 155/15, 640/787 is
GCF of Numerators i.e. for 155,640 is 5
LCM of denominators i.e. for 15,787 is 11805.
Thus, GCF of Fractions is 5/11805.Finally, GCF of Fractions for 155/15, 640/787 is 5/11805.