Answer:
9/32 of the cookie was left for Stephanie to eat after lunch
Step-by-step explanation:
Anastasia’s mom baked a giant sugar cookie for her birthday.
On her birthday, ⅝ of the birthday cookie was eaten.
So, remaining cake =[tex]1 - \frac{5}{8}=\frac{3}{8}[/tex]
The next day her brother ate ¼ of what remained.
Amount of cake eaten by her brother = [tex]\frac{1}{4}(\frac{3}{8})=\frac{3}{32}[/tex]
So, remaining cake = [tex]\frac{3}{8}-\frac{3}{32}=\frac{12-3}{32}=\frac{9}{32}[/tex]
Hence 9/32 of the cookie was left for Stephanie to eat after lunch