GCF of 28/69, 45/87, 801/685
Reviewed By : Phani Ponnapalli
Last Updated at : Mar 29,2023
Use our free GCF of Fractions Calculator tool to compute the GCF of 28/69, 45/87, 801/685 i.e 1/1370685 easily. The following is the detailed procedure to determine the greatest common factor of fractions 28/69, 45/87, 801/685.
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 28/69,45/87,801/685?
Given fractions are 28/69,45/87,801/685
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 28/69,45/87,801/685, numerators are 28,45,801
Denominators are 69,87,685
The GCF of 28,45,801 is 1 .
LCM of 69,87,685 is 1370685.
The greatest common factor of 28/69,45/87,801/685 = [GCF of 28,45,801]/[LCM of 69,87,685]= 1/1370685
Therefore, the GCF of 28/69,45/87,801/685 is 1/1370685.
To find the highest common factor of 28,45,801, 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 45 are 1, 3, 5, 9, 15, 45
The factors of 801 are 1, 3, 9, 89, 267, 801
The HCF of 28,45,801 is 1.
Lets's calculate GCF of 28,45,801
∴ So GCF of numbers is 1 because of no common factors present between them.
Greatest Common Factor of 28,45,801 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 45
:1,3,5,9,15,45
Now, list down the factors of 801
:1,3,9,89,267,801
Greatest Common Factor
We found the factors 28,45,801 . The biggest common factor number is the GCF number.
So the greatest common factor 28,45,801 is 1.
Lets's calculate LCM of 69,87,685
| 3 | 69, 87, 685 |
| 23, 29, 685 |
∴ So the LCM of the given numbers is 3 x 23 x 29 x 685 = 1370685
Thus GCF of Fractions = GCF of Numerators/LCM of Denominators = 1/1370685
Therefore, the GCF of Fractions 28/69,45/87,801/685 is 1/1370685
Least Common Multiple of 69,87,685 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 69,87,685 and common factors if more than two numbers have common factor, than apply into the LCM equation.
GCF(69,87,685) = 1
common factors(in case of two or more numbers have common factors) = 3
GCF(69,87,685) x common factors =1 x 3 = 3
LCM(69,87,685) = ( 69 × 87 × 685 ) / 3
LCM(69,87,685) = 4112055 / 3
LCM(69,87,685) = 1370685
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FAQs on GCF of Fractions of 28/69, 45/87, 801/685
1. What is the HCF of 28,45,801?
The HCF of 28,45,801 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 28/69, 45/87, 801/685?
Answer: GCF of Numerators as per given numbers 28/69, 45/87, 801/685 is
GCF of Numerators i.e. for 28,45,801 is 1
LCM of denominators i.e. for 69,87,685 is 1370685.
Thus, GCF of Fractions is 1/1370685.Finally, GCF of Fractions for 28/69, 45/87, 801/685 is 1/1370685.