Why do we find the gcf for ?

[Guest]

if we use lcm to solve fractions , why do we use the gcf for ?

[Guest]

GCF is most commonly used when reducing a fraction to its lowest terms, while LCM is used when adding unlike fractions

[Guest]

We use the greatest common factor (GCF) to simplify fractions to their lowest terms.
here's an example:
Let's say we have the fraction [tex]\frac{12}{18}[/tex]
To simplify this fraction to its lowest terms, we find the greatest common factor (GCF) of 12 and 18, which is 6.
Then, we divide both the numerator and denominator of the fraction by the GCF:
[tex]\frac{12}{18}[/tex]=[tex]\frac{12/6}{18/6}[/tex]=2/3
To save time you can also use gcf-lcm.com