Greatest Common Factor of 71/87, 40/12, 86/20, 57/401

Created By : Jatin Gogia

Reviewed By : Rajasekhar Valipishetty

Last Updated : Apr 06, 2023

GCF of 71/87, 40/12, 86/20, 57/401

Enter two or more fractions separated by "commas"

Ex: 2/3, 5/7 or 3/5, 5/9, 7/3

GCF of:

Greatest Common Factor of 71/87,40/12,86/20,57/401

Given fractions are 71/87,40/12,86/20,57/401

Formula to find GCF of Fractions is

GCF = GCF of Numerators/LCM of Denominators

As per the formula GCF of Fractions let’s split into two parts and find the GCF of Numerators and LCM of Denominators

In the given fractions GCF of Numerators means GCF of 71,40,86,57

Greatest Common Factor of Numerators i.e. GCF of 71,40,86,57 is 1 .

LCM of Denominators means LCM of 87,12,20,401 as per the given fractions.

LCM of 87,12,20,401 is 697740 as it is the smallest common factor for both these numbers.

Lets's calculate GCF of 71,40,86,57

GCF of Fractions 71/87,40/12,86/20,57/401 is 1/697740

∴ So GCF of numbers is 1 because of no common factors present between them.

Greatest Common Factor of 71,40,86,57 By Matching Biggest Common Factor Method

Greatest Common Factor of 71,40,86,57 By Matching Biggest Common Factor Method

Factors of 71

List of positive integer factors of 71 that divides 71 without a remainder.

1,71

Factors of 40

List of positive integer factors of 40 that divides 40 without a remainder.

1,2,4,5,8,10,20,40

Factors of 86

List of positive integer factors of 86 that divides 86 without a remainder.

1,2,43,86

Factors of 57

List of positive integer factors of 57 that divides 57 without a remainder.

1,3,19,57

Greatest Common Factor

We found the factors 71,40,86,57 . The biggest common factor number is the GCF number.
So the greatest common factor 71,40,86,57 is 1.

Lets's calculate LCM of 87,12,20,401

2 87, 12, 20, 401
2 87, 6, 10, 401
3 87, 3, 5, 401
29, 1, 5, 401

∴ So the LCM of the given numbers is 2 x 2 x 3 x 29 x 1 x 5 x 401 = 697740

Thus GCF of Fractions = GCF of Numerators/LCM of Denominators = 1/697740

Therefore, the GCF of Fractions 71/87,40/12,86/20,57/401 is 1/697740

Least Common Multiple of 87,12,20,401 with GCF Formula

Least Common Multiple of 87,12,20,401 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 87,12,20,401 and common factors if more than two numbers have common factor, than apply into the LCM equation.

GCF(87,12,20,401) = 1

common factors(in case of two or more numbers have common factors) = 12

GCF(87,12,20,401) x common factors =1 x 12 = 12

LCM(87,12,20,401) = ( 87 × 12 × 20 × 401 ) / 12

LCM(87,12,20,401) = 8372880 / 12

LCM(87,12,20,401) = 697740


GCF of Fractions Calculation Examples

Here are some samples of GCF of Fractions calculations.

GCF of Fractions Calculation Examples

Here are some samples of GCF of Fractions calculations.

Frequently Asked Questions on Fractional GCF of 71/87, 40/12, 86/20, 57/401

1. 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.

2. What is the GCF of Fractions for 71/87, 40/12, 86/20, 57/401?

Answer: GCF of Numerators as per given numbers 71/87, 40/12, 86/20, 57/401 is

GCF of Numerators i.e. for 71,40,86,57 is 1

LCM of denominators i.e. for 87,12,20,401 is 697740.

Thus, GCF of Fractions is 1/697740.Finally, GCF of Fractions for 71/87, 40/12, 86/20, 57/401 is 1/697740.