Answer:
Frank
Step-by-step explanation:
So If Dave ate ¼ more than Frank, you would need to divide the denominator by the amount of pizzas, so if 12÷4 is 3 he ate three more pizzas than Frank. If we do the same for Frank, ⅕ or 15÷5=3
So the correct answer would be Frank because 12 is less than 15
My apologies if this wasnt explained very well