Answer:
[tex]\frac{1}{6}[/tex]
Step-by-step explanation:
You need to add the amount Shawna & Ryan ate together, then subtract it from 1 to find the amount of pizza that was left for Dominic to eat.
[tex]\frac{1}{3}[/tex] + [tex]\frac{1}{2}[/tex] = ?
Make all the denominators the same to add fractions.
[tex]\frac{1}{3}[/tex] is [tex]\frac{2}{6}[/tex]
[tex]\frac{1}{2}[/tex] is [tex]\frac{3}{6}[/tex]
[tex]\frac{2}{6}[/tex] + [tex]\frac{3}{6}[/tex] = [tex]\frac{5}{6}[/tex]
1 - [tex]\frac{5}{6}[/tex] = [tex]\frac{1}{6}[/tex]
