Answer:
[tex]\frac{3}{4}[/tex] of the nails are either size 2d or 4d
Step-by-step explanation:
we know that
[tex]\frac{2}{4}[/tex] of the nails are size 2d
[tex]\frac{1}{4}[/tex] of the nails are size 4D
so
To find the fraction of the nails that are either size 2d or 4d, sum [tex]\frac{2}{4}[/tex] plus [tex]\frac{1}{4}[/tex]
[tex]\frac{2}{4} +\frac{1}{4}=\frac{3}{4}[/tex]
