GCF of 40/257, 72/985, 400/808
Reviewed By : Phani Ponnapalli
Last Updated at : Mar 29,2023
Use our free GCF of Fractions Calculator tool to compute the GCF of 40/257, 72/985, 400/808 i.e 8/204541160 easily. The following is the detailed procedure to determine the greatest common factor of fractions 40/257, 72/985, 400/808.
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 40/257,72/985,400/808?
Given fractions are 40/257,72/985,400/808
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 40/257,72/985,400/808, numerators are 40,72,400
Denominators are 257,985,808
The GCF of 40,72,400 is 8 .
LCM of 257,985,808 is 204541160.
The greatest common factor of 40/257,72/985,400/808 = [GCF of 40,72,400]/[LCM of 257,985,808]= 8/204541160
Therefore, the GCF of 40/257,72/985,400/808 is 8/204541160.
To find the highest common factor of 40,72,400, we have to find the factors of both numbers and list the highest common factor.
The factors of 40 are 1, 2, 4, 5, 8, 10, 20, 40
The factors of 72 are 1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 72
The factors of 400 are 1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400
The HCF of 40,72,400 is 8.
Lets's calculate GCF of 40,72,400
| 2 | 40, 72, 400 |
| 2 | 20, 36, 200 |
| 2 | 10, 18, 100 |
| 5, 9, 50 |
∴ So the GCF of the given numbers is 2 x 2 x 2 = 8
Greatest Common Factor of 40,72,400 By Matching Biggest Common Factor Method
Now, list down the factors of 40
:1,2,4,5,8,10,20,40
Now, list down the factors of 72
:1,2,3,4,6,8,9,12,18,24,36,72
Now, list down the factors of 400
:1,2,4,5,8,10,16,20,25,40,50,80,100,200,400
Greatest Common Factor
We found the factors 40,72,400 . The biggest common factor number is the GCF number.
So the greatest common factor 40,72,400 is 8.
Lets's calculate LCM of 257,985,808
Given numbers has no common factors except 1. So, there LCM is their product i.e 204541160
Thus GCF of Fractions = GCF of Numerators/LCM of Denominators = 8/204541160
Therefore, the GCF of Fractions 40/257,72/985,400/808 is 8/204541160
Least Common Multiple of 257,985,808 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 257,985,808 and common factors if more than two numbers have common factor, than apply into the LCM equation.
GCF(257,985,808) = 1
common factors(in case of two or more numbers have common factors) = 1
GCF(257,985,808) x common factors =1 x 1 = 1
LCM(257,985,808) = ( 257 × 985 × 808 ) / 1
LCM(257,985,808) = 204541160 / 1
LCM(257,985,808) = 204541160
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FAQs on GCF of Fractions of 40/257, 72/985, 400/808
1. What is the HCF of 40,72,400?
The HCF of 40,72,400 is 8
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 40/257, 72/985, 400/808?
Answer: GCF of Numerators as per given numbers 40/257, 72/985, 400/808 is
GCF of Numerators i.e. for 40,72,400 is 8
LCM of denominators i.e. for 257,985,808 is 204541160.
Thus, GCF of Fractions is 8/204541160.Finally, GCF of Fractions for 40/257, 72/985, 400/808 is 8/204541160.