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GCF of 78/90, 828/28, 694/672

Created By : Veerendra
Reviewed By : Phani Ponnapalli
Last Updated at : Mar 29,2023


Use our free GCF of Fractions Calculator tool to compute the GCF of 78/90, 828/28, 694/672 i.e 2/10080 easily. The following is the detailed procedure to determine the greatest common factor of fractions 78/90, 828/28, 694/672.

Enter two or more fractions separated by "commas"

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

GCF of:

What is the GCF of 78/90,828/28,694/672?

Given fractions are 78/90,828/28,694/672

To find the GCF of fractions, we have to find the GCF of numerator numbers and LCM of denominator numbers. Its formula is given by

GCF of Fraction = Greatest Common Factor of Numerator/Least Common Multiple of Denominators

In the fractions 78/90,828/28,694/672, numerators are 78,828,694

Denominators are 90,28,672

The GCF of 78,828,694 is 2 .

LCM of 90,28,672 is 10080.

The greatest common factor of 78/90,828/28,694/672 = [GCF of 78,828,694]/[LCM of 90,28,672]= 2/10080

Therefore, the GCF of 78/90,828/28,694/672 is 2/10080.

Greatest Common Factor of 78,828,694

To find the highest common factor of 78,828,694, we have to find the factors of both numbers and list the highest common factor.

The factors of 78 are 1, 2, 3, 6, 13, 26, 39, 78

The factors of 828 are 1, 2, 3, 4, 6, 9, 12, 18, 23, 36, 46, 69, 92, 138, 207, 276, 414, 828

The factors of 694 are 1, 2, 347, 694

The HCF of 78,828,694 is 2.

Lets's calculate GCF of 78,828,694

Greatest Common Factor (GCF) of 78,828,694 By Common Division

2 78, 828, 694
39, 414, 347

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

Greatest Common Factor of 78,828,694 By Matching Biggest Common Factor Method

Greatest Common Factor of 78,828,694 By Matching Biggest Common Factor Method

Now, list down the factors of 78

:

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

Now, list down the factors of 828

:

1,2,3,4,6,9,12,18,23,36,46,69,92,138,207,276,414,828

Now, list down the factors of 694

:

1,2,347,694

Greatest Common Factor

We found the factors 78,828,694 . The biggest common factor number is the GCF number.
So the greatest common factor 78,828,694 is 2.


Lets's calculate LCM of 90,28,672

Lowest Common Multiple of 90,28,672 using Common Division

2 90, 28, 672
2 45, 14, 336
3 45, 7, 168
7 15, 7, 56
15, 1, 8

∴ So the LCM of the given numbers is 2 x 2 x 3 x 7 x 15 x 1 x 8 = 10080

Thus GCF of Fractions = GCF of Numerators/LCM of Denominators = 2/10080

Therefore, the GCF of Fractions 78/90,828/28,694/672 is 2/10080

Least Common Multiple of 90,28,672 with GCF Formula

Least Common Multiple of 90,28,672 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 90,28,672 and common factors if more than two numbers have common factor, than apply into the LCM equation.

GCF(90,28,672) = 2

common factors(in case of two or more numbers have common factors) = 84

GCF(90,28,672) x common factors =2 x 84 = 168

LCM(90,28,672) = ( 90 × 28 × 672 ) / 168

LCM(90,28,672) = 1693440 / 168

LCM(90,28,672) = 10080


GCF of Fractions Calculation Examples

FAQs on GCF of Fractions of 78/90, 828/28, 694/672

1. What is the HCF of 78,828,694?

The HCF of 78,828,694 is 2

2. What is the GCF of a fraction?

The GCF of a fraction is defined as the greatest fraction that divides exactly into 2 or more fractions.

3. 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.

4. What is the GCF of Fractions for 78/90, 828/28, 694/672?

Answer: GCF of Numerators as per given numbers 78/90, 828/28, 694/672 is

GCF of Numerators i.e. for 78,828,694 is 2

LCM of denominators i.e. for 90,28,672 is 10080.

Thus, GCF of Fractions is 2/10080.Finally, GCF of Fractions for 78/90, 828/28, 694/672 is 2/10080.