Greatest Common Factor of 90/28, 19/66, 12/63, 80/644

Created By : Jatin Gogia

Reviewed By : Rajasekhar Valipishetty

Last Updated : Apr 06, 2023

GCF of 90/28, 19/66, 12/63, 80/644

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 90/28,19/66,12/63,80/644

Given fractions are 90/28,19/66,12/63,80/644

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 90,19,12,80

Greatest Common Factor of Numerators i.e. GCF of 90,19,12,80 is 1 .

LCM of Denominators means LCM of 28,66,63,644 as per the given fractions.

LCM of 28,66,63,644 is 63756 as it is the smallest common factor for both these numbers.

Lets's calculate GCF of 90,19,12,80

GCF of Fractions 90/28,19/66,12/63,80/644 is 1/63756

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

Greatest Common Factor of 90,19,12,80 By Matching Biggest Common Factor Method

Greatest Common Factor of 90,19,12,80 By Matching Biggest Common Factor Method

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

Factors of 19

List of positive integer factors of 19 that divides 19 without a remainder.

1,19

Factors of 12

List of positive integer factors of 12 that divides 12 without a remainder.

1,2,3,4,6,12

Factors of 80

List of positive integer factors of 80 that divides 80 without a remainder.

1,2,4,5,8,10,16,20,40,80

Greatest Common Factor

We found the factors 90,19,12,80 . The biggest common factor number is the GCF number.
So the greatest common factor 90,19,12,80 is 1.

Lets's calculate LCM of 28,66,63,644

2 28, 66, 63, 644
2 14, 33, 63, 322
3 7, 33, 63, 161
7 7, 11, 21, 161
1, 11, 3, 23

∴ So the LCM of the given numbers is 2 x 2 x 3 x 7 x 1 x 11 x 3 x 23 = 63756

Thus GCF of Fractions = GCF of Numerators/LCM of Denominators = 1/63756

Therefore, the GCF of Fractions 90/28,19/66,12/63,80/644 is 1/63756

Least Common Multiple of 28,66,63,644 with GCF Formula

Least Common Multiple of 28,66,63,644 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 28,66,63,644 and common factors if more than two numbers have common factor, than apply into the LCM equation.

GCF(28,66,63,644) = 1

common factors(in case of two or more numbers have common factors) = 1176

GCF(28,66,63,644) x common factors =1 x 1176 = 1176

LCM(28,66,63,644) = ( 28 × 66 × 63 × 644 ) / 1176

LCM(28,66,63,644) = 74977056 / 1176

LCM(28,66,63,644) = 63756


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 90/28, 19/66, 12/63, 80/644

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 90/28, 19/66, 12/63, 80/644?

Answer: GCF of Numerators as per given numbers 90/28, 19/66, 12/63, 80/644 is

GCF of Numerators i.e. for 90,19,12,80 is 1

LCM of denominators i.e. for 28,66,63,644 is 63756.

Thus, GCF of Fractions is 1/63756.Finally, GCF of Fractions for 90/28, 19/66, 12/63, 80/644 is 1/63756.