GCF of 690/422, 278/490
Reviewed By : Phani Ponnapalli
Last Updated at : Mar 29,2023
Use our free GCF of Fractions Calculator tool to compute the GCF of 690/422, 278/490 i.e 2/103390 easily. The following is the detailed procedure to determine the greatest common factor of fractions 690/422, 278/490.
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 690/422,278/490?
Given fractions are 690/422,278/490
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 690/422,278/490, numerators are 690,278
Denominators are 422,490
The GCF of 690,278 is 2 .
LCM of 422,490 is 103390.
The greatest common factor of 690/422,278/490 = [GCF of 690,278]/[LCM of 422,490]= 2/103390
Therefore, the GCF of 690/422,278/490 is 2/103390.
To find the highest common factor of 690,278, we have to find the factors of both numbers and list the highest common factor.
The factors of 690 are 1, 2, 3, 5, 6, 10, 15, 23, 30, 46, 69, 115, 138, 230, 345, 690
The factors of 278 are 1, 2, 139, 278
The HCF of 690,278 is 2.
Lets's calculate GCF of 690,278
| 2 | 690, 278 |
| 345, 139 |
∴ So the GCF of the given numbers is 2 = 2
Greatest Common Factor of 690,278 By Matching Biggest Common Factor Method
Now, list down the factors of 690
:1,2,3,5,6,10,15,23,30,46,69,115,138,230,345,690
Now, list down the factors of 278
:1,2,139,278
Greatest Common Factor
We found the factors 690,278 . The biggest common factor number is the GCF number.
So the greatest common factor 690,278 is 2.
Lets's calculate LCM of 422,490
| 2 | 422, 490 |
| 211, 245 |
∴ So the LCM of the given numbers is 2 x 211 x 245 = 103390
Thus GCF of Fractions = GCF of Numerators/LCM of Denominators = 2/103390
Therefore, the GCF of Fractions 690/422,278/490 is 2/103390
Least Common Multiple of 422,490 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 422,490 and common factors if more than two numbers have common factor, than apply into the LCM equation.
GCF(422,490) = 2
common factors(in case of two or more numbers have common factors) = 1
GCF(422,490) x common factors =2 x 1 = 2
LCM(422,490) = ( 422 × 490 ) / 2
LCM(422,490) = 206780 / 2
LCM(422,490) = 103390
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FAQs on GCF of Fractions of 690/422, 278/490
1. What is the HCF of 690,278?
The HCF of 690,278 is 2
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 690/422, 278/490?
Answer: GCF of Numerators as per given numbers 690/422, 278/490 is
GCF of Numerators i.e. for 690,278 is 2
LCM of denominators i.e. for 422,490 is 103390.
Thus, GCF of Fractions is 2/103390.Finally, GCF of Fractions for 690/422, 278/490 is 2/103390.