Greatest Common Factor of 78/70, 99/80, 82/38, 28/660

Created By : Jatin Gogia

Reviewed By : Rajasekhar Valipishetty

Last Updated : Apr 06, 2023

GCF of 78/70, 99/80, 82/38, 28/660

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 78/70,99/80,82/38,28/660

Given fractions are 78/70,99/80,82/38,28/660

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 78,99,82,28

Greatest Common Factor of Numerators i.e. GCF of 78,99,82,28 is 1 .

LCM of Denominators means LCM of 70,80,38,660 as per the given fractions.

LCM of 70,80,38,660 is 351120 as it is the smallest common factor for both these numbers.

Lets's calculate GCF of 78,99,82,28

GCF of Fractions 78/70,99/80,82/38,28/660 is 1/351120

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

Greatest Common Factor of 78,99,82,28 By Matching Biggest Common Factor Method

Greatest Common Factor of 78,99,82,28 By Matching Biggest Common Factor Method

Factors of 78

List of positive integer factors of 78 that divides 78 without a remainder.

1,2,3,6,13,26,39,78

Factors of 99

List of positive integer factors of 99 that divides 99 without a remainder.

1,3,9,11,33,99

Factors of 82

List of positive integer factors of 82 that divides 82 without a remainder.

1,2,41,82

Factors of 28

List of positive integer factors of 28 that divides 28 without a remainder.

1,2,4,7,14,28

Greatest Common Factor

We found the factors 78,99,82,28 . The biggest common factor number is the GCF number.
So the greatest common factor 78,99,82,28 is 1.

Lets's calculate LCM of 70,80,38,660

2 70, 80, 38, 660
2 35, 40, 19, 330
5 35, 20, 19, 165
7, 4, 19, 33

∴ So the LCM of the given numbers is 2 x 2 x 5 x 7 x 4 x 19 x 33 = 351120

Thus GCF of Fractions = GCF of Numerators/LCM of Denominators = 1/351120

Therefore, the GCF of Fractions 78/70,99/80,82/38,28/660 is 1/351120

Least Common Multiple of 70,80,38,660 with GCF Formula

Least Common Multiple of 70,80,38,660 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 70,80,38,660 and common factors if more than two numbers have common factor, than apply into the LCM equation.

GCF(70,80,38,660) = 2

common factors(in case of two or more numbers have common factors) = 200

GCF(70,80,38,660) x common factors =2 x 200 = 400

LCM(70,80,38,660) = ( 70 × 80 × 38 × 660 ) / 400

LCM(70,80,38,660) = 140448000 / 400

LCM(70,80,38,660) = 351120


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 78/70, 99/80, 82/38, 28/660

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 78/70, 99/80, 82/38, 28/660?

Answer: GCF of Numerators as per given numbers 78/70, 99/80, 82/38, 28/660 is

GCF of Numerators i.e. for 78,99,82,28 is 1

LCM of denominators i.e. for 70,80,38,660 is 351120.

Thus, GCF of Fractions is 1/351120.Finally, GCF of Fractions for 78/70, 99/80, 82/38, 28/660 is 1/351120.