GCF of 756/688, 6520/840
Reviewed By : Phani Ponnapalli
Last Updated at : Mar 29,2023
Use our free GCF of Fractions Calculator tool to compute the GCF of 756/688, 6520/840 i.e 4/72240 easily. The following is the detailed procedure to determine the greatest common factor of fractions 756/688, 6520/840.
Enter two or more fractions separated by "commas"
Ex: 2/3, 5/7 or 3/5, 5/9, 7/3
What is the GCF of 756/688,6520/840?
Given fractions are 756/688,6520/840
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 756/688,6520/840, numerators are 756,6520
Denominators are 688,840
The GCF of 756,6520 is 4 .
LCM of 688,840 is 72240.
The greatest common factor of 756/688,6520/840 = [GCF of 756,6520]/[LCM of 688,840]= 4/72240
Therefore, the GCF of 756/688,6520/840 is 4/72240.
To find the highest common factor of 756,6520, we have to find the factors of both numbers and list the highest common factor.
The factors of 756 are 1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 27, 28, 36, 42, 54, 63, 84, 108, 126, 189, 252, 378, 756
The factors of 6520 are 1, 2, 4, 5, 8, 10, 20, 40, 163, 326, 652, 815, 1304, 1630, 3260, 6520
The HCF of 756,6520 is 4.
Lets's calculate GCF of 756,6520
| 2 | 756, 6520 |
| 2 | 378, 3260 |
| 189, 1630 |
∴ So the GCF of the given numbers is 2 x 2 = 4
Greatest Common Factor of 756,6520 By Matching Biggest Common Factor Method
Now, list down the factors of 756
:1,2,3,4,6,7,9,12,14,18,21,27,28,36,42,54,63,84,108,126,189,252,378,756
Now, list down the factors of 6520
:1,2,4,5,8,10,20,40,163,326,652,815,1304,1630,3260,6520
Greatest Common Factor
We found the factors 756,6520 . The biggest common factor number is the GCF number.
So the greatest common factor 756,6520 is 4.
Lets's calculate LCM of 688,840
| 2 | 688, 840 |
| 2 | 344, 420 |
| 2 | 172, 210 |
| 86, 105 |
∴ So the LCM of the given numbers is 2 x 2 x 2 x 86 x 105 = 72240
Thus GCF of Fractions = GCF of Numerators/LCM of Denominators = 4/72240
Therefore, the GCF of Fractions 756/688,6520/840 is 4/72240
Least Common Multiple of 688,840 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 688,840 and common factors if more than two numbers have common factor, than apply into the LCM equation.
GCF(688,840) = 8
common factors(in case of two or more numbers have common factors) = 1
GCF(688,840) x common factors =8 x 1 = 8
LCM(688,840) = ( 688 × 840 ) / 8
LCM(688,840) = 577920 / 8
LCM(688,840) = 72240
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FAQs on GCF of Fractions of 756/688, 6520/840
1. What is the HCF of 756,6520?
The HCF of 756,6520 is 4
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 756/688, 6520/840?
Answer: GCF of Numerators as per given numbers 756/688, 6520/840 is
GCF of Numerators i.e. for 756,6520 is 4
LCM of denominators i.e. for 688,840 is 72240.
Thus, GCF of Fractions is 4/72240.Finally, GCF of Fractions for 756/688, 6520/840 is 4/72240.