Greatest Common Factor of 56/17, 40/236, 420/890

Created By : Jatin Gogia

Reviewed By : Rajasekhar Valipishetty

Last Updated : Apr 06, 2023

GCF of 56/17, 40/236, 420/890

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 56/17,40/236,420/890

Given fractions are 56/17,40/236,420/890

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 56,40,420

Greatest Common Factor of Numerators i.e. GCF of 56,40,420 is 4 .

LCM of Denominators means LCM of 17,236,890 as per the given fractions.

LCM of 17,236,890 is 1785340 as it is the smallest common factor for both these numbers.

Lets's calculate GCF of 56,40,420

GCF of Fractions 56/17,40/236,420/890 is 4/1785340

2 56, 40, 420
2 28, 20, 210
14, 10, 105

∴ So the GCF of the given numbers is 2 x 2 = 4

Greatest Common Factor of 56,40,420 By Matching Biggest Common Factor Method

Greatest Common Factor of 56,40,420 By Matching Biggest Common Factor Method

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 40

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

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

Factors of 420

List of positive integer factors of 420 that divides 420 without a remainder.

1,2,3,4,5,6,7,10,12,14,15,20,21,28,30,35,42,60,70,84,105,140,210,420

Greatest Common Factor

We found the factors 56,40,420 . The biggest common factor number is the GCF number.
So the greatest common factor 56,40,420 is 4.

Lets's calculate LCM of 17,236,890

2 17, 236, 890
17, 118, 445

∴ So the LCM of the given numbers is 2 x 17 x 118 x 445 = 1785340

Thus GCF of Fractions = GCF of Numerators/LCM of Denominators = 4/1785340

Therefore, the GCF of Fractions 56/17,40/236,420/890 is 4/1785340

Least Common Multiple of 17,236,890 with GCF Formula

Least Common Multiple of 17,236,890 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 17,236,890 and common factors if more than two numbers have common factor, than apply into the LCM equation.

GCF(17,236,890) = 1

common factors(in case of two or more numbers have common factors) = 2

GCF(17,236,890) x common factors =1 x 2 = 2

LCM(17,236,890) = ( 17 × 236 × 890 ) / 2

LCM(17,236,890) = 3570680 / 2

LCM(17,236,890) = 1785340


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 56/17, 40/236, 420/890

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 56/17, 40/236, 420/890?

Answer: GCF of Numerators as per given numbers 56/17, 40/236, 420/890 is

GCF of Numerators i.e. for 56,40,420 is 4

LCM of denominators i.e. for 17,236,890 is 1785340.

Thus, GCF of Fractions is 4/1785340.Finally, GCF of Fractions for 56/17, 40/236, 420/890 is 4/1785340.