GCF of 212/81, 686/436
Reviewed By : Phani Ponnapalli
Last Updated at : Mar 29,2023
Use our free GCF of Fractions Calculator tool to compute the GCF of 212/81, 686/436 i.e 2/35316 easily. The following is the detailed procedure to determine the greatest common factor of fractions 212/81, 686/436.
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 212/81,686/436?
Given fractions are 212/81,686/436
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 212/81,686/436, numerators are 212,686
Denominators are 81,436
The GCF of 212,686 is 2 .
LCM of 81,436 is 35316.
The greatest common factor of 212/81,686/436 = [GCF of 212,686]/[LCM of 81,436]= 2/35316
Therefore, the GCF of 212/81,686/436 is 2/35316.
To find the highest common factor of 212,686, we have to find the factors of both numbers and list the highest common factor.
The factors of 212 are 1, 2, 4, 53, 106, 212
The factors of 686 are 1, 2, 7, 14, 49, 98, 343, 686
The HCF of 212,686 is 2.
Lets's calculate GCF of 212,686
| 2 | 212, 686 |
| 106, 343 |
∴ So the GCF of the given numbers is 2 = 2
Greatest Common Factor of 212,686 By Matching Biggest Common Factor Method
Now, list down the factors of 212
:1,2,4,53,106,212
Now, list down the factors of 686
:1,2,7,14,49,98,343,686
Greatest Common Factor
We found the factors 212,686 . The biggest common factor number is the GCF number.
So the greatest common factor 212,686 is 2.
Lets's calculate LCM of 81,436
Given numbers has no common factors except 1. So, there LCM is their product i.e 35316
Thus GCF of Fractions = GCF of Numerators/LCM of Denominators = 2/35316
Therefore, the GCF of Fractions 212/81,686/436 is 2/35316
Least Common Multiple of 81,436 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 81,436 and common factors if more than two numbers have common factor, than apply into the LCM equation.
GCF(81,436) = 1
common factors(in case of two or more numbers have common factors) = 1
GCF(81,436) x common factors =1 x 1 = 1
LCM(81,436) = ( 81 × 436 ) / 1
LCM(81,436) = 35316 / 1
LCM(81,436) = 35316
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FAQs on GCF of Fractions of 212/81, 686/436
1. What is the HCF of 212,686?
The HCF of 212,686 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 212/81, 686/436?
Answer: GCF of Numerators as per given numbers 212/81, 686/436 is
GCF of Numerators i.e. for 212,686 is 2
LCM of denominators i.e. for 81,436 is 35316.
Thus, GCF of Fractions is 2/35316.Finally, GCF of Fractions for 212/81, 686/436 is 2/35316.