Greatest Common Factor of 70/57, 56/42, 23/70, 137/15

Created By : Jatin Gogia

Reviewed By : Rajasekhar Valipishetty

Last Updated : Apr 06, 2023

GCF of 70/57, 56/42, 23/70, 137/15

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 70/57,56/42,23/70,137/15

Given fractions are 70/57,56/42,23/70,137/15

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 70,56,23,137

Greatest Common Factor of Numerators i.e. GCF of 70,56,23,137 is 1 .

LCM of Denominators means LCM of 57,42,70,15 as per the given fractions.

LCM of 57,42,70,15 is 3990 as it is the smallest common factor for both these numbers.

Lets's calculate GCF of 70,56,23,137

GCF of Fractions 70/57,56/42,23/70,137/15 is 1/3990

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

Greatest Common Factor of 70,56,23,137 By Matching Biggest Common Factor Method

Greatest Common Factor of 70,56,23,137 By Matching Biggest Common Factor Method

Factors of 70

List of positive integer factors of 70 that divides 70 without a remainder.

1,2,5,7,10,14,35,70

Factors of 56

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

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

Factors of 23

List of positive integer factors of 23 that divides 23 without a remainder.

1,23

Factors of 137

List of positive integer factors of 137 that divides 137 without a remainder.

1,137

Greatest Common Factor

We found the factors 70,56,23,137 . The biggest common factor number is the GCF number.
So the greatest common factor 70,56,23,137 is 1.

Lets's calculate LCM of 57,42,70,15

2 57, 42, 70, 15
3 57, 21, 35, 15
5 19, 7, 35, 5
7 19, 7, 7, 1
19, 1, 1, 1

∴ So the LCM of the given numbers is 2 x 3 x 5 x 7 x 19 x 1 x 1 x 1 = 3990

Thus GCF of Fractions = GCF of Numerators/LCM of Denominators = 1/3990

Therefore, the GCF of Fractions 70/57,56/42,23/70,137/15 is 1/3990

Least Common Multiple of 57,42,70,15 with GCF Formula

Least Common Multiple of 57,42,70,15 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 57,42,70,15 and common factors if more than two numbers have common factor, than apply into the LCM equation.

GCF(57,42,70,15) = 1

common factors(in case of two or more numbers have common factors) = 630

GCF(57,42,70,15) x common factors =1 x 630 = 630

LCM(57,42,70,15) = ( 57 × 42 × 70 × 15 ) / 630

LCM(57,42,70,15) = 2513700 / 630

LCM(57,42,70,15) = 3990


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 70/57, 56/42, 23/70, 137/15

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 70/57, 56/42, 23/70, 137/15?

Answer: GCF of Numerators as per given numbers 70/57, 56/42, 23/70, 137/15 is

GCF of Numerators i.e. for 70,56,23,137 is 1

LCM of denominators i.e. for 57,42,70,15 is 3990.

Thus, GCF of Fractions is 1/3990.Finally, GCF of Fractions for 70/57, 56/42, 23/70, 137/15 is 1/3990.