Use our free GCF of Fractions Calculator tool to compute the GCF of 190/661, 1720/455 i.e 10/300755 easily. The following is the detailed procedure to determine the greatest common factor of fractions 190/661, 1720/455.
Enter two or more fractions separated by "commas"
Ex: 2/3, 5/7 or 3/5, 5/9, 7/3
Given fractions are 190/661,1720/455
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 190/661,1720/455, numerators are 190,1720
Denominators are 661,455
The GCF of 190,1720 is 10 .
LCM of 661,455 is 300755.
The greatest common factor of 190/661,1720/455 = [GCF of 190,1720]/[LCM of 661,455]= 10/300755
Therefore, the GCF of 190/661,1720/455 is 10/300755.
To find the highest common factor of 190,1720, we have to find the factors of both numbers and list the highest common factor.
The factors of 190 are 1, 2, 5, 10, 19, 38, 95, 190
The factors of 1720 are 1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 430, 860, 1720
The HCF of 190,1720 is 10.
Lets's calculate GCF of 190,1720
2 | 190, 1720 |
5 | 95, 860 |
19, 172 |
∴ So the GCF of the given numbers is 2 x 5 = 10
Now, list down the factors of 190
:1,2,5,10,19,38,95,190
Now, list down the factors of 1720
:1,2,4,5,8,10,20,40,43,86,172,215,344,430,860,1720
Greatest Common Factor
We found the factors 190,1720 . The biggest common factor number is the GCF number.
So the greatest common factor 190,1720 is 10.
Lets's calculate LCM of 661,455
Given numbers has no common factors except 1. So, there LCM is their product i.e 300755
Thus GCF of Fractions = GCF of Numerators/LCM of Denominators = 10/300755
Therefore, the GCF of Fractions 190/661,1720/455 is 10/300755
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 661,455 and common factors if more than two numbers have common factor, than apply into the LCM equation.
GCF(661,455) = 1
common factors(in case of two or more numbers have common factors) = 1
GCF(661,455) x common factors =1 x 1 = 1
LCM(661,455) = ( 661 × 455 ) / 1
LCM(661,455) = 300755 / 1
LCM(661,455) = 300755
Here are some samples of GCF of Fractions calculations.
1. What is the HCF of 190,1720?
The HCF of 190,1720 is 10
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 190/661, 1720/455?
Answer: GCF of Numerators as per given numbers 190/661, 1720/455 is
GCF of Numerators i.e. for 190,1720 is 10
LCM of denominators i.e. for 661,455 is 300755.
Thus, GCF of Fractions is 10/300755.Finally, GCF of Fractions for 190/661, 1720/455 is 10/300755.