GCF of 665/428, 1520/221
Reviewed By : Phani Ponnapalli
Last Updated at : Mar 29,2023
Use our free GCF of Fractions Calculator tool to compute the GCF of 665/428, 1520/221 i.e 95/94588 easily. The following is the detailed procedure to determine the greatest common factor of fractions 665/428, 1520/221.
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 665/428,1520/221?
Given fractions are 665/428,1520/221
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 665/428,1520/221, numerators are 665,1520
Denominators are 428,221
The GCF of 665,1520 is 95 .
LCM of 428,221 is 94588.
The greatest common factor of 665/428,1520/221 = [GCF of 665,1520]/[LCM of 428,221]= 95/94588
Therefore, the GCF of 665/428,1520/221 is 95/94588.
To find the highest common factor of 665,1520, we have to find the factors of both numbers and list the highest common factor.
The factors of 665 are 1, 5, 7, 19, 35, 95, 133, 665
The factors of 1520 are 1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 152, 190, 304, 380, 760, 1520
The HCF of 665,1520 is 95.
Lets's calculate GCF of 665,1520
| 5 | 665, 1520 |
| 19 | 133, 304 |
| 7, 16 |
∴ So the GCF of the given numbers is 5 x 19 = 95
Greatest Common Factor of 665,1520 By Matching Biggest Common Factor Method
Now, list down the factors of 665
:1,5,7,19,35,95,133,665
Now, list down the factors of 1520
:1,2,4,5,8,10,16,19,20,38,40,76,80,95,152,190,304,380,760,1520
Greatest Common Factor
We found the factors 665,1520 . The biggest common factor number is the GCF number.
So the greatest common factor 665,1520 is 95.
Lets's calculate LCM of 428,221
Given numbers has no common factors except 1. So, there LCM is their product i.e 94588
Thus GCF of Fractions = GCF of Numerators/LCM of Denominators = 95/94588
Therefore, the GCF of Fractions 665/428,1520/221 is 95/94588
Least Common Multiple of 428,221 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 428,221 and common factors if more than two numbers have common factor, than apply into the LCM equation.
GCF(428,221) = 1
common factors(in case of two or more numbers have common factors) = 1
GCF(428,221) x common factors =1 x 1 = 1
LCM(428,221) = ( 428 × 221 ) / 1
LCM(428,221) = 94588 / 1
LCM(428,221) = 94588
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FAQs on GCF of Fractions of 665/428, 1520/221
1. What is the HCF of 665,1520?
The HCF of 665,1520 is 95
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 665/428, 1520/221?
Answer: GCF of Numerators as per given numbers 665/428, 1520/221 is
GCF of Numerators i.e. for 665,1520 is 95
LCM of denominators i.e. for 428,221 is 94588.
Thus, GCF of Fractions is 95/94588.Finally, GCF of Fractions for 665/428, 1520/221 is 95/94588.