GCF of 490/649, 7938/354
Reviewed By : Phani Ponnapalli
Last Updated at : Mar 29,2023
Use our free GCF of Fractions Calculator tool to compute the GCF of 490/649, 7938/354 i.e 98/3894 easily. The following is the detailed procedure to determine the greatest common factor of fractions 490/649, 7938/354.
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 490/649,7938/354?
Given fractions are 490/649,7938/354
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 490/649,7938/354, numerators are 490,7938
Denominators are 649,354
The GCF of 490,7938 is 98 .
LCM of 649,354 is 3894.
The greatest common factor of 490/649,7938/354 = [GCF of 490,7938]/[LCM of 649,354]= 98/3894
Therefore, the GCF of 490/649,7938/354 is 98/3894.
To find the highest common factor of 490,7938, we have to find the factors of both numbers and list the highest common factor.
The factors of 490 are 1, 2, 5, 7, 10, 14, 35, 49, 70, 98, 245, 490
The factors of 7938 are 1, 2, 3, 6, 7, 9, 14, 18, 21, 27, 42, 49, 54, 63, 81, 98, 126, 147, 162, 189, 294, 378, 441, 567, 882, 1134, 1323, 2646, 3969, 7938
The HCF of 490,7938 is 98.
Lets's calculate GCF of 490,7938
| 2 | 490, 7938 |
| 7 | 245, 3969 |
| 7 | 35, 567 |
| 5, 81 |
∴ So the GCF of the given numbers is 2 x 7 x 7 = 98
Greatest Common Factor of 490,7938 By Matching Biggest Common Factor Method
Now, list down the factors of 490
:1,2,5,7,10,14,35,49,70,98,245,490
Now, list down the factors of 7938
:1,2,3,6,7,9,14,18,21,27,42,49,54,63,81,98,126,147,162,189,294,378,441,567,882,1134,1323,2646,3969,7938
Greatest Common Factor
We found the factors 490,7938 . The biggest common factor number is the GCF number.
So the greatest common factor 490,7938 is 98.
Lets's calculate LCM of 649,354
| 59 | 649, 354 |
| 11, 6 |
∴ So the LCM of the given numbers is 59 x 11 x 6 = 3894
Thus GCF of Fractions = GCF of Numerators/LCM of Denominators = 98/3894
Therefore, the GCF of Fractions 490/649,7938/354 is 98/3894
Least Common Multiple of 649,354 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 649,354 and common factors if more than two numbers have common factor, than apply into the LCM equation.
GCF(649,354) = 59
common factors(in case of two or more numbers have common factors) = 1
GCF(649,354) x common factors =59 x 1 = 59
LCM(649,354) = ( 649 × 354 ) / 59
LCM(649,354) = 229746 / 59
LCM(649,354) = 3894
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FAQs on GCF of Fractions of 490/649, 7938/354
1. What is the HCF of 490,7938?
The HCF of 490,7938 is 98
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 490/649, 7938/354?
Answer: GCF of Numerators as per given numbers 490/649, 7938/354 is
GCF of Numerators i.e. for 490,7938 is 98
LCM of denominators i.e. for 649,354 is 3894.
Thus, GCF of Fractions is 98/3894.Finally, GCF of Fractions for 490/649, 7938/354 is 98/3894.