GCF of 18/87, 15/74, 58/128
Reviewed By : Phani Ponnapalli
Last Updated at : Mar 29,2023
Use our free GCF of Fractions Calculator tool to compute the GCF of 18/87, 15/74, 58/128 i.e 1/412032 easily. The following is the detailed procedure to determine the greatest common factor of fractions 18/87, 15/74, 58/128.
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 18/87,15/74,58/128?
Given fractions are 18/87,15/74,58/128
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 18/87,15/74,58/128, numerators are 18,15,58
Denominators are 87,74,128
The GCF of 18,15,58 is 1 .
LCM of 87,74,128 is 412032.
The greatest common factor of 18/87,15/74,58/128 = [GCF of 18,15,58]/[LCM of 87,74,128]= 1/412032
Therefore, the GCF of 18/87,15/74,58/128 is 1/412032.
To find the highest common factor of 18,15,58, we have to find the factors of both numbers and list the highest common factor.
The factors of 18 are 1, 2, 3, 6, 9, 18
The factors of 15 are 1, 3, 5, 15
The factors of 58 are 1, 2, 29, 58
The HCF of 18,15,58 is 1.
Lets's calculate GCF of 18,15,58
∴ So GCF of numbers is 1 because of no common factors present between them.
Greatest Common Factor of 18,15,58 By Matching Biggest Common Factor Method
Now, list down the factors of 18
:1,2,3,6,9,18
Now, list down the factors of 15
:1,3,5,15
Now, list down the factors of 58
:1,2,29,58
Greatest Common Factor
We found the factors 18,15,58 . The biggest common factor number is the GCF number.
So the greatest common factor 18,15,58 is 1.
Lets's calculate LCM of 87,74,128
| 2 | 87, 74, 128 |
| 87, 37, 64 |
∴ So the LCM of the given numbers is 2 x 87 x 37 x 64 = 412032
Thus GCF of Fractions = GCF of Numerators/LCM of Denominators = 1/412032
Therefore, the GCF of Fractions 18/87,15/74,58/128 is 1/412032
Least Common Multiple of 87,74,128 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 87,74,128 and common factors if more than two numbers have common factor, than apply into the LCM equation.
GCF(87,74,128) = 1
common factors(in case of two or more numbers have common factors) = 2
GCF(87,74,128) x common factors =1 x 2 = 2
LCM(87,74,128) = ( 87 × 74 × 128 ) / 2
LCM(87,74,128) = 824064 / 2
LCM(87,74,128) = 412032
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FAQs on GCF of Fractions of 18/87, 15/74, 58/128
1. What is the HCF of 18,15,58?
The HCF of 18,15,58 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 18/87, 15/74, 58/128?
Answer: GCF of Numerators as per given numbers 18/87, 15/74, 58/128 is
GCF of Numerators i.e. for 18,15,58 is 1
LCM of denominators i.e. for 87,74,128 is 412032.
Thus, GCF of Fractions is 1/412032.Finally, GCF of Fractions for 18/87, 15/74, 58/128 is 1/412032.