Answer:
The fraction is [tex]\frac{3}{20}[/tex]
Step-by-step explanation:
Let
x-----> fraction of the DVDs in Andy’s collection that is not “action” or “comedy”
we know that
The 100% of the collection is equal to
100%=100/100=1
so
[tex]1=x+\frac{3}{5}+\frac{1}{4}[/tex]
[tex]x=1-\frac{3}{5}-\frac{1}{4} \\ \\x=\frac{20-4*3-5*1}{20}\\ \\x=\frac{3}{20}[/tex]