Greatest Common Factor & Least Common Multiple

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Least Common Multiple

The smallest number that is a product of both of the numbers being compared

Numerator

The top number in a fraction

Simplify a Fraction

To divide the numerator and denominator by the greatest common factor

Find a Common Denominator

To find the least common multiple of the denominators and make equivalent fractions

Make Equivalent Fractions

To multiply OR divide the numerator and denominator by the same number

GCF of 12 and 20

4

GCF of 8 and 12

4

GCF of 6 and 12

6

LCM 12 and 20

60

Factor

A number that is multiplied by another number to get a product

Equivalent Fraction

Fractions that have the same value

GCF

Greatest Common Factor

Greatest

Largest

LCM

Least Common Multiple

Least

Smallest

Denominator

The bottom number in a fraction

Greatest Common Factor

The largest number that is a factor for both of the numbers being compared

Multiple

The product of a whole number and any other whole number

LCM of 4 and 5

20

LCM of 12 and 24

24

LCM of 8 and 12

24

GCF of 6 and 9

3

LCM of 6 and 10

30

GCF of 2 and 7

1

GCF of 4 and 5

1

GCF of 10 and 20

10

LCM of 6 and 12

12

LCM of 3 and 5

15

GCF of 6 and 10

2

LCM of 10 and 20

20


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