GCF of 689/42, 221/260
Reviewed By : Phani Ponnapalli
Last Updated at : Mar 29,2023
Use our free GCF of Fractions Calculator tool to compute the GCF of 689/42, 221/260 i.e 13/5460 easily. The following is the detailed procedure to determine the greatest common factor of fractions 689/42, 221/260.
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 689/42,221/260?
Given fractions are 689/42,221/260
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 689/42,221/260, numerators are 689,221
Denominators are 42,260
The GCF of 689,221 is 13 .
LCM of 42,260 is 5460.
The greatest common factor of 689/42,221/260 = [GCF of 689,221]/[LCM of 42,260]= 13/5460
Therefore, the GCF of 689/42,221/260 is 13/5460.
To find the highest common factor of 689,221, we have to find the factors of both numbers and list the highest common factor.
The factors of 689 are 1, 13, 53, 689
The factors of 221 are 1, 13, 17, 221
The HCF of 689,221 is 13.
Lets's calculate GCF of 689,221
| 13 | 689, 221 |
| 53, 17 |
∴ So the GCF of the given numbers is 13 = 13
Greatest Common Factor of 689,221 By Matching Biggest Common Factor Method
Now, list down the factors of 689
:1,13,53,689
Now, list down the factors of 221
:1,13,17,221
Greatest Common Factor
We found the factors 689,221 . The biggest common factor number is the GCF number.
So the greatest common factor 689,221 is 13.
Lets's calculate LCM of 42,260
| 2 | 42, 260 |
| 21, 130 |
∴ So the LCM of the given numbers is 2 x 21 x 130 = 5460
Thus GCF of Fractions = GCF of Numerators/LCM of Denominators = 13/5460
Therefore, the GCF of Fractions 689/42,221/260 is 13/5460
Least Common Multiple of 42,260 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 42,260 and common factors if more than two numbers have common factor, than apply into the LCM equation.
GCF(42,260) = 2
common factors(in case of two or more numbers have common factors) = 1
GCF(42,260) x common factors =2 x 1 = 2
LCM(42,260) = ( 42 × 260 ) / 2
LCM(42,260) = 10920 / 2
LCM(42,260) = 5460
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FAQs on GCF of Fractions of 689/42, 221/260
1. What is the HCF of 689,221?
The HCF of 689,221 is 13
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 689/42, 221/260?
Answer: GCF of Numerators as per given numbers 689/42, 221/260 is
GCF of Numerators i.e. for 689,221 is 13
LCM of denominators i.e. for 42,260 is 5460.
Thus, GCF of Fractions is 13/5460.Finally, GCF of Fractions for 689/42, 221/260 is 13/5460.