Greatest Common Factor of 37/84, 15/21, 25/42, 56/42

Created By : Jatin Gogia

Reviewed By : Rajasekhar Valipishetty

Last Updated : Apr 06, 2023


GCF of 37/84, 15/21, 25/42, 56/42

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 37/84,15/21,25/42,56/42

Given fractions are 37/84,15/21,25/42,56/42

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 37,15,25,56

Greatest Common Factor of Numerators i.e. GCF of 37,15,25,56 is 1 .

LCM of Denominators means LCM of 84,21,42,42 as per the given fractions.

LCM of 84,21,42,42 is 84 as it is the smallest common factor for both these numbers.

Lets's calculate GCF of 37,15,25,56

GCF of Fractions 37/84,15/21,25/42,56/42 is 1/84

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

Greatest Common Factor of 37,15,25,56 By Matching Biggest Common Factor Method

Greatest Common Factor of 37,15,25,56 By Matching Biggest Common Factor Method

Factors of 37

List of positive integer factors of 37 that divides 37 without a remainder.

1,37

Factors of 15

List of positive integer factors of 15 that divides 15 without a remainder.

1,3,5,15

Factors of 25

List of positive integer factors of 25 that divides 25 without a remainder.

1,5,25

Factors of 56

List of positive integer factors of 56 that divides 56 without a remainder.

1,2,4,7,8,14,28,56

Greatest Common Factor

We found the factors 37,15,25,56 . The biggest common factor number is the GCF number.
So the greatest common factor 37,15,25,56 is 1.


Lets's calculate LCM of 84,21,42,42

2 84, 21, 42, 42
3 42, 21, 21, 21
7 14, 7, 7, 7
2, 1, 1, 1

∴ So the LCM of the given numbers is 2 x 3 x 7 x 2 x 1 x 1 x 1 = 84

Thus GCF of Fractions = GCF of Numerators/LCM of Denominators = 1/84

Therefore, the GCF of Fractions 37/84,15/21,25/42,56/42 is 1/84

Least Common Multiple of 84,21,42,42 with GCF Formula

Least Common Multiple of 84,21,42,42 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 84,21,42,42 and common factors if more than two numbers have common factor, than apply into the LCM equation.

GCF(84,21,42,42) = 21

common factors(in case of two or more numbers have common factors) = 1764

GCF(84,21,42,42) x common factors =21 x 1764 = 37044

LCM(84,21,42,42) = ( 84 × 21 × 42 × 42 ) / 37044

LCM(84,21,42,42) = 3111696 / 37044

LCM(84,21,42,42) = 84


GCF of Fractions Calculation Examples

Here are some samples of GCF of Fractions calculations.

GCF of Fractions Calculation Examples

Frequently Asked Questions on Fractional GCF of 37/84, 15/21, 25/42, 56/42

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 37/84, 15/21, 25/42, 56/42?

Answer: GCF of Numerators as per given numbers 37/84, 15/21, 25/42, 56/42 is

GCF of Numerators i.e. for 37,15,25,56 is 1

LCM of denominators i.e. for 84,21,42,42 is 84.

Thus, GCF of Fractions is 1/84.Finally, GCF of Fractions for 37/84, 15/21, 25/42, 56/42 is 1/84.