GCF of 28/972, 39/731, 280/385
Reviewed By : Phani Ponnapalli
Last Updated at : Mar 29,2023
Use our free GCF of Fractions Calculator tool to compute the GCF of 28/972, 39/731, 280/385 i.e 1/273554820 easily. The following is the detailed procedure to determine the greatest common factor of fractions 28/972, 39/731, 280/385.
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 28/972,39/731,280/385?
Given fractions are 28/972,39/731,280/385
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 28/972,39/731,280/385, numerators are 28,39,280
Denominators are 972,731,385
The GCF of 28,39,280 is 1 .
LCM of 972,731,385 is 273554820.
The greatest common factor of 28/972,39/731,280/385 = [GCF of 28,39,280]/[LCM of 972,731,385]= 1/273554820
Therefore, the GCF of 28/972,39/731,280/385 is 1/273554820.
To find the highest common factor of 28,39,280, we have to find the factors of both numbers and list the highest common factor.
The factors of 28 are 1, 2, 4, 7, 14, 28
The factors of 39 are 1, 3, 13, 39
The factors of 280 are 1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280
The HCF of 28,39,280 is 1.
Lets's calculate GCF of 28,39,280
∴ So GCF of numbers is 1 because of no common factors present between them.
Greatest Common Factor of 28,39,280 By Matching Biggest Common Factor Method
Now, list down the factors of 28
:1,2,4,7,14,28
Now, list down the factors of 39
:1,3,13,39
Now, list down the factors of 280
:1,2,4,5,7,8,10,14,20,28,35,40,56,70,140,280
Greatest Common Factor
We found the factors 28,39,280 . The biggest common factor number is the GCF number.
So the greatest common factor 28,39,280 is 1.
Lets's calculate LCM of 972,731,385
Given numbers has no common factors except 1. So, there LCM is their product i.e 273554820
Thus GCF of Fractions = GCF of Numerators/LCM of Denominators = 1/273554820
Therefore, the GCF of Fractions 28/972,39/731,280/385 is 1/273554820
Least Common Multiple of 972,731,385 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 972,731,385 and common factors if more than two numbers have common factor, than apply into the LCM equation.
GCF(972,731,385) = 1
common factors(in case of two or more numbers have common factors) = 1
GCF(972,731,385) x common factors =1 x 1 = 1
LCM(972,731,385) = ( 972 × 731 × 385 ) / 1
LCM(972,731,385) = 273554820 / 1
LCM(972,731,385) = 273554820
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FAQs on GCF of Fractions of 28/972, 39/731, 280/385
1. What is the HCF of 28,39,280?
The HCF of 28,39,280 is 1
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 28/972, 39/731, 280/385?
Answer: GCF of Numerators as per given numbers 28/972, 39/731, 280/385 is
GCF of Numerators i.e. for 28,39,280 is 1
LCM of denominators i.e. for 972,731,385 is 273554820.
Thus, GCF of Fractions is 1/273554820.Finally, GCF of Fractions for 28/972, 39/731, 280/385 is 1/273554820.