GCF of 385/788, 660/738
Reviewed By : Phani Ponnapalli
Last Updated at : Mar 29,2023
Use our free GCF of Fractions Calculator tool to compute the GCF of 385/788, 660/738 i.e 55/290772 easily. The following is the detailed procedure to determine the greatest common factor of fractions 385/788, 660/738.
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 385/788,660/738?
Given fractions are 385/788,660/738
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 385/788,660/738, numerators are 385,660
Denominators are 788,738
The GCF of 385,660 is 55 .
LCM of 788,738 is 290772.
The greatest common factor of 385/788,660/738 = [GCF of 385,660]/[LCM of 788,738]= 55/290772
Therefore, the GCF of 385/788,660/738 is 55/290772.
To find the highest common factor of 385,660, we have to find the factors of both numbers and list the highest common factor.
The factors of 385 are 1, 5, 7, 11, 35, 55, 77, 385
The factors of 660 are 1, 2, 3, 4, 5, 6, 10, 11, 12, 15, 20, 22, 30, 33, 44, 55, 60, 66, 110, 132, 165, 220, 330, 660
The HCF of 385,660 is 55.
Lets's calculate GCF of 385,660
| 5 | 385, 660 |
| 11 | 77, 132 |
| 7, 12 |
∴ So the GCF of the given numbers is 5 x 11 = 55
Greatest Common Factor of 385,660 By Matching Biggest Common Factor Method
Now, list down the factors of 385
:1,5,7,11,35,55,77,385
Now, list down the factors of 660
:1,2,3,4,5,6,10,11,12,15,20,22,30,33,44,55,60,66,110,132,165,220,330,660
Greatest Common Factor
We found the factors 385,660 . The biggest common factor number is the GCF number.
So the greatest common factor 385,660 is 55.
Lets's calculate LCM of 788,738
| 2 | 788, 738 |
| 394, 369 |
∴ So the LCM of the given numbers is 2 x 394 x 369 = 290772
Thus GCF of Fractions = GCF of Numerators/LCM of Denominators = 55/290772
Therefore, the GCF of Fractions 385/788,660/738 is 55/290772
Least Common Multiple of 788,738 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 788,738 and common factors if more than two numbers have common factor, than apply into the LCM equation.
GCF(788,738) = 2
common factors(in case of two or more numbers have common factors) = 1
GCF(788,738) x common factors =2 x 1 = 2
LCM(788,738) = ( 788 × 738 ) / 2
LCM(788,738) = 581544 / 2
LCM(788,738) = 290772
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FAQs on GCF of Fractions of 385/788, 660/738
1. What is the HCF of 385,660?
The HCF of 385,660 is 55
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 385/788, 660/738?
Answer: GCF of Numerators as per given numbers 385/788, 660/738 is
GCF of Numerators i.e. for 385,660 is 55
LCM of denominators i.e. for 788,738 is 290772.
Thus, GCF of Fractions is 55/290772.Finally, GCF of Fractions for 385/788, 660/738 is 55/290772.