Greatest Common Factor of 28/398, 90/755

Created By : Jatin Gogia

Reviewed By : Rajasekhar Valipishetty

Last Updated : Apr 06, 2023

GCF of 28/398, 90/755

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 28/398,90/755

Given fractions are 28/398,90/755

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 28,90

Greatest Common Factor of Numerators i.e. GCF of 28,90 is 2 .

LCM of Denominators means LCM of 398,755 as per the given fractions.

LCM of 398,755 is 300490 as it is the smallest common factor for both these numbers.

Lets's calculate GCF of 28,90

GCF of Fractions 28/398,90/755 is 2/300490

2 28, 90
14, 45

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

Greatest Common Factor of 28,90 By Matching Biggest Common Factor Method

Greatest Common Factor of 28,90 By Matching Biggest Common Factor Method

Factors of 28

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

1,2,4,7,14,28

Factors of 90

List of positive integer factors of 90 that divides 90 without a remainder.

1,2,3,5,6,9,10,15,18,30,45,90

Greatest Common Factor

We found the factors 28,90 . The biggest common factor number is the GCF number.
So the greatest common factor 28,90 is 2.

Lets's calculate LCM of 398,755

Given numbers has no common factors except 1. So, there LCM is their product i.e 300490

Thus GCF of Fractions = GCF of Numerators/LCM of Denominators = 2/300490

Therefore, the GCF of Fractions 28/398,90/755 is 2/300490

Least Common Multiple of 398,755 with GCF Formula

Least Common Multiple of 398,755 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 398,755 and common factors if more than two numbers have common factor, than apply into the LCM equation.

GCF(398,755) = 1

common factors(in case of two or more numbers have common factors) = 1

GCF(398,755) x common factors =1 x 1 = 1

LCM(398,755) = ( 398 × 755 ) / 1

LCM(398,755) = 300490 / 1

LCM(398,755) = 300490


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 28/398, 90/755

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 28/398, 90/755?

Answer: GCF of Numerators as per given numbers 28/398, 90/755 is

GCF of Numerators i.e. for 28,90 is 2

LCM of denominators i.e. for 398,755 is 300490.

Thus, GCF of Fractions is 2/300490.Finally, GCF of Fractions for 28/398, 90/755 is 2/300490.